When transferring an order to a table that already has an open order, identical products are merged into a single line. If both orders were already sent to the kitchen printer, the merged line was incorrectly marked as new and had to be sent again.

Steps to reproduce:
-------------------
* Open table 1, add product A (2 units) and product B, send to kitchen
* Open table 2, add product A (3 units) and product C, send to kitchen
* On table 2, transfer/merge the order to table 1

> Observation:
product A shows 2 units as new and must be sent to the kitchen printer again, although all quantities were already sent.

Why the fix:
------------
When merging preparation history for identical lines, handlePreparationHistory overwrote the destination sent quantity with the source one instead of summing both. The kitchen diff then treated the missing quantity as new changes.

A unit test will be added in 18.3.

opw-6246470

Forward-Port-Of: odoo/odoo#271828
Forward-Port-Of: odoo/odoo#267915

### Issue:
When creating an automatic reconciliation rule by assigning the same account to multiple bank statement lines, the rule incorrectly overrides the original payment reference of subsequent lines with the account name

This creates an inconsistent user experience
Using the "Set Account" button directly keeps the statement line payment reference as the journal item label
However, clicking the automatically generated reconciliation model button replaces that reference with the account name

Before the fix, clicking the automated rule button on a third matching line overrides its label with the account name instead of keeping its unique reference

### Cause:
In `_create_reconciliation_rule`, when an automatic model is generated, the dictionary used to create the counterpart line explicitly set `label` to `rule_data['account'].name`

When a reconciliation model line has a specific label defined, Odoo uses it to replace the statement line `payment_ref` on the generated counterpart move lines
Removing this default value allows the system to fall back on the original payment reference

### Steps to reproduce:
- Install `account_accountant`
- Go to the Bank Reconciliation widget from the Accounting Dashboard
- Create 2 statement lines without partners (e.g., Ref: "Test Ref 1" and "Test Ref 2")
- Set the same account on both lines using Set Account
- This automatically creates a Reconciliation Rule named after the account
- Create a 3rd statement line with a matching reference (e.g., "Test Ref 3")
- Click the newly available automatic reconciliation button for this line

Before the fix, checking the generated entry label shows the account name instead of "Test Ref 3"
To check unfold the details, click on the pencil icon of a line

opw-6246833

Forward-Port-Of: odoo/enterprise#119133

Problem
----------------------
When an employee takes a long sick leave (more than 30 days), the basic wage on the payslip is set to 0, leading to the holiday attest annual taxable income to be calculated as 0 * 12, which is incorrect.

Reason
-------------------
The calculation for the holiday attest uses the last payslip for the employee, and if the employee had leave type LEAVE214, the last payslip has the basic wage set to zero, so the taxable wage that is used in the annual taxable wage calculation is wrong. The monthly wage should be used as the basic wage in the payslip to get the correct computation.

Solution
-------------------
The GROSS (taxable income) line that is used is computed as (basic wage - ONSS total + BIK), but the basic wage was 0. This commit checks whether the basic wage is 0 and if the time off type was longterm sick leave, and simulates a payslip using the monthly wage from the contract as basic wage to get the accurate computation for the taxable income.

task-6237717

Forward-Port-Of: odoo/enterprise#120180

When opening Studio → Contacts → Accounting Tab, Owl raises the following error:

```py
Odoo Client Error

Occured on 114697239-saas-19-2-all.runbot254.odoo.com on 2026-06-19 07:01:00 GMT

UncaughtPromiseError > OwlError
Uncaught Promise > Invalid props for component 'BankTag': 'onDelete' is undefined (should be a value)
OwlError: Invalid props for component 'BankTag': 'onDelete' is undefined (should be a value)
    Error: Invalid props for component 'BankTag': 'onDelete' is undefined (should be a value)
        at Object.validateProps (https://114697239-saas-19-2-all.runbot254.odoo.com/web/assets/5482857/web.assets_web.min.js:1001:67)
        at FieldMany2ManyTagsBanks.slot1 (eval at compile (https://114697239-saas-19-2-all.runbot254.odoo.com/web/assets/5482857/web.assets_web.min.js:1387:421), <anonymous>:16:13)
        at callSlot (https://114697239-saas-19-2-all.runbot254.odoo.com/web/assets/5482857/web.assets_web.min.js:968:25)
        at TagsList.template (eval at compile (https://114697239-saas-19-2-all.runbot254.odoo.com/web/assets/5482857/web.assets_web.min.js:1387:421), <anonymous>:22:30)
        at Fiber._render (https://114697239-saas-19-2-all.runbot254.odoo.com/web/assets/5482857/web.assets_web.min.js:797:96)
        at Fiber.render (https://114697239-saas-19-2-all.runbot254.odoo.com/web/assets/5482857/web.assets_web.min.js:796:6)
        at ComponentNode.initiateRender (https://114697239-saas-19-2-all.runbot254.odoo.com/web/assets/5482857/web.assets_web.min.js:867:47)
```
Note: The error only occurs when the contact has at least one bank accounts (bank_ids) in the Accounting tab.

`FieldMany2ManyTagsBanks` inherits from `Many2ManyTagsField`, whose `getTagProps()` [method](https://github.com/odoo/odoo/blob/saas-19.2/addons/web/static/src/views/fields/many2many_tags/many2many_tags_field.js#L165-L173) intentionally sets `onDelete` to [undefined](https://github.com/odoo/odoo/blob/saas-19.2/addons/web/static/src/views/fields/many2many_tags/many2many_tags_field.js#L168) when the field is rendered in readonly mode.

However, `BankTag` declares `onDelete` as a required [prop](https://github.com/odoo/odoo/blob/saas-19.2/addons/account/static/src/components/many2many_tags_banks/many2many_tags_banks.js#L18). Since Studio renders the field as readonly, `onDelete` is undefined, causing Owl prop validation to fail.

Make `onDelete` optional in `BankTag` to match the behavior of the parent widget and the underlying `BadgeTag` component, which already defines `onDelete` as [optional](https://github.com/odoo/odoo/blob/saas-19.2/addons/web/static/src/core/tags_list/badge_tag.js#L12).

This fixes the Owl error when opening the Accounting tab in Studio.

Description of the issue/feature this PR addresses:

Current behavior before PR:

Desired behavior after PR is merged:




---
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Forward-Port-Of: odoo/odoo#271019

Description of the issue/feature this PR addresses:

`Registry.check_indexes` derives a column index's name as `<table>__<column>_index`, which does **not** encode the access method, and only creates the index when no index of that name already exists. It never inspects the access method of an existing index.

As a consequence, changing a field's `index=` kind on an **already-indexed** column is silently ignored on existing databases. For example `account.move.name` was changed from a plain btree index to `index='trigram'`:

```python
name = fields.Char(
    ...
    index='trigram',
)
```
On a fresh database this creates the expected GIN/trigram index. On any database that already had the btree index, the old btree index keeps its name, so `check_indexes` finds the name present and does nothing. The `(=)ilike` searches the trigram index was meant to accelerate keep falling back to sequential scans, with no error or warning.

Current behavior before PR:

### Steps to reproduce

1. Install a module on an existing DB while a `Char` field is `index=True` (btree).
2. Change the field to `index='trigram'` and upgrade the module.
3. `\d <table>` in psql — the index is still `USING btree`, not `USING gin`.

Desired behavior after PR is merged:

`check_indexes` now also reads each existing index's access method (`pg_am.amname`). When the method no longer matches what the field expects (`gin` for trigram, `btree` otherwise), the stale index is dropped and recreated. The drop is issued inside the **same savepoint** as the recreate, so a failed rebuild (e.g. a lock timeout) rolls the drop back and never leaves the column without an index.

Scope: only the access method is reconciled. A change that alters solely the partial predicate (`btree` -> `btree_not_null`) keeps the same method and is intentionally left untouched.

### Notes

- This extends the existing index-management logic in place and keeps the current "keep unexpected index" behaviour for fields that dropped `index=` entirely; only fields that still want an index, of a different method, are rebuilt.
- Trigram rebuilds still require the `pg_trgm` extension; without it the GIN index is skipped exactly as before (`self.has_trigram` guard).


---
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Forward-Port-Of: odoo/odoo#272198
Forward-Port-Of: odoo/odoo#268505

Step to reproduce:
- install l10n_co_dian and pos
- open pos and click on create a new partner from partner list
- enter name ex. "temp", identification number, click on form
- notice a `refresh icon` is visible: click on it.

Observation:
- the dialog is closed and partner is selected with "temp" name

Expected:
- with valid government credentials and a valid identification number,
the refresh action should also update the partner data on the POS side

Cause:
- the refresh button triggers the `button_l10n_co_dian_refresh_data` action,
which fetches the legal name and email from the government service
- although the backend record is correctly updated, the new values are not
immediately synchronized with the POS
- when the refresh button is clicked, editPartner() first triggers
`web_save` using the temporary "temp" name and immediately reads the
partner data afterward
- the refresh action executes later and updates the contact with the fetched
legal information, but the POS is not aware of these subsequent changes

Fix:
- read the data again if there is any update caused by this action.
- this is done by overriding `afterExecuteActionButton` of FormController class

opw-6198035

Forward-Port-Of: odoo/enterprise#117527

Steps to Reproduce:

* Create a database before saas~19.3.
* Install to l10n_do and company configured
* Upgrade the database to saas~19.3.
* Check the Dominican Republic chart of accounts, taxes, and tax groups.

Issue:

* The localization updates introduced in saas~19.3 are not loaded during the upgrade.
* As a result, some Dominican Republic accounts, taxes, and tax groups are missing after the upgrade.

Cause:

* New localization data was introduced for `l10n_do`, but the chart template is not reloaded during the upgrade.
* Consequently, the newly introduced records are never created on upgraded databases.

Related:
https://github.com/odoo/odoo/pull/257233

Fix:

* Reload the Dominican Republic chart template during the upgrade using `account.chart.template.try_loading('do', company)` to ensure all newly
 introduced accounts, taxes, and tax groups are created.

opw-6274580
upg-4333738

Description of the issue/feature this PR addresses:

Current behavior before PR:

Desired behavior after PR is merged:




---
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Steps to reproduce
------------------
Serial-tracked finished product:
1. Create a serial-tracked finished product and an un-tracked component.
2. Create a Manufacturing Order with quantity 2 and confirm it.
3. Open the Barcode app, scan the MO, then scan a first serial number SN_X1.
4. Scan a second serial number SN_X2.
5. Validate.

Lot-tracked finished product:
1. Create a lot-tracked finished product with a one-component BoM and an existing lot LOT_A.
2. Create a Manufacturing Order and confirm it.
3. Open the Barcode app, scan the MO, then scan the existing lot LOT_A.
4. Scan a different, not-yet-existing lot LOT_B.
5. Validate.

Issue
-----
Only the last scanned serial is registered on the MO, and validation then fails because the count of producing serials does not match qty_producing for a serial-tracked finished product.

updateLine overwrote lot_producing_ids with [args.lot_id] on every scan, so the first serial was dropped when the second one was scanned, and the same branch never staged a freshly typed
lot_name, so a brand-new serial typed on a serial-tracked MO was lost before reaching the backend.

https://github.com/odoo/enterprise/blob/4a2f1da5466740b7758d1962e5241620845d616b/stock_barcode_mrp/static/src/models/barcode_mrp_model.js#L407

Two behaviours of the shared barcode dispatcher make a single accumulating branch insufficient.

The final-product line must keep exposing a producing lot, otherwise the base hasUnassignedQty check counts a scanned serial as zero once a quantity is already set, leaving qty_producing stuck below the demand.

https://github.com/odoo/enterprise/blob/f622064871bf55b93890606d16407c50cf4419a6/stock_barcode/static/src/models/barcode_model.js#L1446

But exposing a producing lot makes the dispatcher treat the next serial as a conflicting tracking number, since the base _canOverrideTrackingNumber considers a different lot name non-overridable.

https://github.com/odoo/enterprise/blob/f622064871bf55b93890606d16407c50cf4419a6/stock_barcode/static/src/models/barcode_model.js#L796-L798

So the scan is diverted to a new line through the override gate instead of updating the header line.

https://github.com/odoo/enterprise/blob/f622064871bf55b93890606d16407c50cf4419a6/stock_barcode/static/src/models/barcode_model.js#L1585

For a lot-tracked finished product the producing lot can be corrected by scanning a different value, but the lot branch only stored a freshly typed value in lot_name and overwrote lot_producing_ids with the single existing lot.

https://github.com/odoo/enterprise/blob/4a2f1da5466740b7758d1962e5241620845d616b/stock_barcode_mrp/static/src/models/barcode_mrp_model.js#L404-L407

The header reads its lot from lot_producing_ids whenever that relation is set and only falls back to lot_name when it is empty.

https://github.com/odoo/enterprise/blob/4a2f1da5466740b7758d1962e5241620845d616b/stock_barcode_mrp/static/src/components/header.js#L45-L58

The save path only promotes lot_name to a producing lot when lot_producing_ids is empty, so scanning an existing lot then a new one neither displayed nor recorded the new lot and the finished product was produced under the old lot.

https://github.com/odoo/enterprise/blob/4a2f1da5466740b7758d1962e5241620845d616b/stock_barcode_mrp/static/src/models/barcode_mrp_model.js#L628

Solution
--------
Accumulate scanned serials by appending to lot_producing_ids instead of replacing it, and stage a freshly typed lot_name as a new producing lot when the finished product is tracked by serial, so every serial reaches the backend.

Keep the final-product line exposing the last producing lot so each scanned serial is still counted as one unit instead of resetting the quantity to zero once several serials are registered.

Override _canOverrideTrackingNumber for the final-product line so a serial scan updates the header line rather than being diverted to a new line, which is the only valid path for the finished product since it is a single header line backed by the lot_producing_ids relation.

Persist the producing serials with explicit x2many commands, separating already-existing lots from freshly typed ones, so both are written on the MO.

Reject a serial that is already registered on the MO so the same number cannot be produced twice in one session.

For a lot-tracked finished product, build a producing lot from the scanned value, using the existing lot or a freshly typed lot name, and store it in lot_producing_ids so the new lot is both displayed and persisted through the same x2many commands as the serial case.

Leave the produced quantity unchanged when the scanned lot differs from the one already registered, since replacing the lot is a correction and not an extra unit, and keep incrementing it when the same lot is scanned again.

opw-6189620

Forward-Port-Of: odoo/enterprise#116890

## Issue
In the Timesheets app, the color of the *Time Spent* cell at the end of a row indicates the current status of the timesheets based on the expected number of working hours. The selected color (green/orange/red) is sometimes wrong when an employee has a work schedule with fractional hours.

## Steps to reproduce
1. Install *Timesheets* (`timesheet_grid`)
2. For an employee E, edit the *Standard 40 hours/week* schedule:
    - Change *Monday Afternoon* "Work to" column from 17:00 to 17:20.
3. In Timesheets > All Timesheets, go back one week and fill the timesheet for the employee E. We need 8 hours everyday but on Monday, where we need 8 hours and 20 minutes.
4. __The background of the *Time Spent* cell is orange, even though there's no overtime anywhere, and the value in the cell is precisely 40:20, which is the expected amount of hours worked.__

## Cause
When comparing the amount of hours worked and the expected amount of hours, small rounding errors occur. At this point of the execution:

https://github.com/odoo/enterprise/blob/19b7f5a6961dbce7367c07fcc55eea1925832634/timesheet_grid/static/src/views/timesheet_grid/timesheet_grid_renderer.js#L157

We obtain the following values:

```js
> monday = section.cells[1]

> monday.value
8.333333333333336

> workingHours[monday.column.value]
8.333333333333332

> monday.value - workingHours[monday.column.value]
3.552713678800501e-15
```

This small difference differing from 0, the wrong color is selected by `_getSectionTotalCellBgColor`:

https://github.com/odoo/enterprise/blob/19b7f5a6961dbce7367c07fcc55eea1925832634/timesheet_grid/static/src/views/timesheet_grid/timesheet_grid_renderer.js#L160-L172

## Fix
The same issue was fixed elsewhere by https://github.com/odoo/enterprise/commit/3340c0610ae6d7d3087f20da04309512771cc4b7. The same fix is applied here for consistency.

opw-6193181

Forward-Port-Of: odoo/enterprise#121463

Steps to reproduce
------------------
1. Set a default tax on the "Cash Difference Gain" account (e.g. a 25%
   sales tax) -- required in some countries like Denmark (cf 5972690).
2. Open a PoS session, count more cash than expected at closing.
3. Try to close the session.

-> Error message shows up "The journal entry reached an invalid
state..." ... "The journal entry must always have exactly one journal
item involving the bank/cash account"

What's happening
----------------
PoS creates a bank statement line with the gain account as counterpart,
resulting in 2 lines: cash +10, gain -10. Since the gain account has a
default tax, `_sync_tax_lines` adds a tax line of -2.5 on top, which
makes the move unbalanced by 2.5. Then `_sync_unbalanced_lines` adds a
4th line to fix it, on the line returned by
`_get_automatic_balancing_account`, which is `journal.default_account_id`,
i.e. the cash account itself for a cash journal.

So we end up with 2 lines on that same cash account, which a bank
statement line move doesn't allow -> Error.

The fix
-------
In `_post_statement_difference`, precompute the base and tax split
ourselves and build the statement line's `line_ids` directly (e.g. for
+10 and a 25% tax: cash +10, gain -8, tax -2). The move is balanced
from creation, so `_sync_tax_lines` and `_sync_unbalanced_lines` don't
have to touch it.

Note that we force the tax computation to be in 'force_price_include'
mode, as the counted cash difference is a gross amount (physical money
in the drawer). This way the tax is always extracted from the cash
amount, regardless of how the tax is configured (included or excluded
in price). Same pattern is already used by `hr_expense` (cf
`hr_expense.models.account_move_line._compute_totals`).

opw-5972690

Forward-Port-Of: odoo/odoo#271921
Forward-Port-Of: odoo/odoo#257892

**Description of the issue/feature this PR addresses:**

The `Product Reference Price` feature in `website_sale` cannot correctly handle products sold in large packs when the reference quantity requires a very small `base_unit_count`.

For example, a product sold as a `box of 10000` screws should be able to use `0.0001` as its `Base Unit Count`, so the reference price can be computed against the box quantity correctly.

**Current behavior before PR:**

`base_unit_count` uses the default float precision, so values with more than two decimal places are rounded in the product form.

When trying to set `Base Unit Count` to `0.0001`, the value is rounded to `0.00` / `0.01`, which makes the Product Reference Price computation incorrect.

Steps to reproduce:

1. Go to Settings > Website and enable Product Reference Price.
2. Create or open a product named `Screws`.
3. Set Sales Price to `$ 1.00`.
4. On the product form, set Base Unit Count to `0.0001`.
5. In Custom Unit of Measure, type `box of 10000` and press Create.


<img width="1374" height="740" alt="1" src="https://github.com/user-attachments/assets/2d4f7863-b2cd-4c7c-87e1-11526dc50551" />

**Desired behavior after PR is merged:**

`base_unit_count` keeps high-precision values such as `0.0001`.

This allows `Product Reference Price` to correctly support large-pack scenarios, such as selling screws in a `box of 10000`, by storing `base_unit_count` with unlimited numeric precision.


---
I confirm I have signed the CLA and read the PR guidelines at www.odoo.com/submit-pr

Forward-Port-Of: odoo/odoo#262579

*: website, website_mass_mailing

__Problem__
In some cases, popup snippets can be dropped inside another popup.
This shouldn't be possible. Moreover, it produces the following error:
`TypeError: Cannot read properties of undefined (reading 'after')`.

This can happen in multiple scenarios:
- After saving a custom snippet, the snippets are reloaded but
  `disableUndroppableSnippets` is not called again, although the
  snippets should be filtered again.
- `NewsletterPopupPlugin` registers `.o_newsletter_popup` in the
  `so_snippet_addition_selector` resource, bypassing the more
  restrictive `dropzone_selector` of `PopupOptionPlugin`.
- Popups are not disabled when the cookie bar is open because we don't
  take `excludeAncestor` into account in `DisableSnippetsPlugin`.

__Fix__
- Trigger an event whenever the snippets are loaded and call
  `disableUndroppableSnippets` when it is.
- Remove the redundant `NewsletterPopupPlugin`.
- Filter `dropAreaEls` with `excludeAncestor` in `DisableSnippetsPlugin`.

Forward-Port-Of: odoo/odoo#271635
Forward-Port-Of: odoo/odoo#269864

**Step to Reproduce:**

1. Open the POS.
2. Add any product to the order.
3. Proceed to the payment screen and select `Pine Labs` as the payment method.
4. Observe that the Pine Labs terminal does not respond and no payment popup appears on the device.
5. Wait until the payment request is cancelled (either manually or due to timeout).
6. Click the `Force Cancel` button.
7. Observe that the POS throws a traceback.

**Video:**
https://drive.google.com/file/d/1A3QPdby-J12IWgOX_SfCLrauQ_QnbqvG/view

**Issue:**

When a Pine Labs payment request is cancelled (either through a cancel request or by timeout), clicking the `Force Cancel` button results in a traceback in
 the POS.

**Reason:**

During the cancellation flow, the payment line status is updated to `retry` so that the transaction can be marked as cancelled and retried if necessary.

Later, when the user clicks `Force Cancel`, `_paymentCancelRequestHandler()` attempts to retrieve the pending Pine Labs payment line using:

```javascript
const line = this.pendingPineLabsPaymentLine();
```

However, `pendingPineLabsPaymentLine()` only returns payment lines whose status is not `retry`, as defined here:

https://github.com/odoo/odoo/blob/19.0/addons/point_of_sale/static/src/app/services/pos_store.js#L1820

Since the payment line was already transitioned to the `retry` state during the cancellation flow, no `payment line` is found and `line` becomes `undefined`.

The handler subsequently attempts to update the status of this `undefined` `payment line`, resulting in the traceback when `Force Cancel` is executed.

**Solution:**

Add a condition in `_paymentCancelRequestHandler()` to verify that a payment line is available before attempting to update its status.

If no payment line is found, it indicates that the payment line has already been
 moved to the `retry` state during a previous cancellation attempt. In such
cases we clear `pollingTimeout`, `inactivityTimeout` and reset `this.payment_stopped` to `false`.

This prevents the traceback while ensuring that the `Force Cancel` flow properly cleans up the pending payment state.

opw-6297135

Forward-Port-Of: odoo/odoo#271397
Forward-Port-Of: odoo/odoo#271241

Steps to reproduce:
* Install `l10n_mx_edi` (or `l10n_sa_edi`).
* Go to **Accounting → Customers → Invoices**.
* Open **Studio** and, from the top bar, go to **Reports**.
* Duplicate the standard **Invoice PDF** report.
* Open the duplicated report and make any modification to it.
* Enable **Developer Mode**.
* Go to **Settings → Technical → Actions → Reports** and update the custom report's **Printed Report Name**.
* Go to **Settings → Technical → Email → Templates** and create a new invoice email template.
* Add the custom report to the template's **Dynamic Reports**.
* Create and confirm an invoice for a **Mexican company**.
* Click **Send** and select the newly created email template.

Observed behavior:
* The custom report attachment uses the CFDI-based filename instead of its own report name, making it appear as a duplicate of the standard invoice attachment.

Cause:
* `_get_placeholder_mail_template_dynamic_attachments_data` relied on the `invoice_report` context key to pass the extra report into `_get_invoice_report_filename`.  However, localization overrides (e.g. `l10n_mx_edi`, `l10n_sa_edi`) unconditionally return their own filename without checking the context, so the extra report's `print_report_name` was never evaluated.

Fix:
* Introduce `_get_invoice_mail_template_dynamic_report_filename` on `account.move` that directly evaluates a given report's `print_report_name`, bypassing the localization override chain.
* Call this new method in `_get_placeholder_mail_template_dynamic_attachments_data` instead of the context-based `_get_invoice_report_filename` call.

This avoids the need to patch every localization override and cleanly separates the concern of naming dynamic report attachments from the main invoice report filename logic.

opw-6228268

Forward-Port-Of: odoo/odoo#271489

When a stock move's UoM differs from the product template's UoM, the report aggregation incorrectly shows data for both UoMs of stock move.quantity on the same graph. All moves should be normalized to the UoM of the product for which we are viewing the forecast.

We can do this with:

`m.quantity * move_uom.factor / pt_uom.factor AS quantity`

If the UoMs of the stock move and the product template are identical, as is the case most of the time, this simply multiplies by one, and the query behaves exactly as it did before. But if the units are distinct, the move UoM is converted into
the product template UoM so that the data for stock move quantity is normalized to one shared unit across the entire forecast graph.

**E.g.**:

m.quantity == 500g
m.UoM == g
m.UoM.factor == 1
pt.UoM == kg
pt.UoM.factor == 1000

500g * 1 / 1000 ==> .5kg

**Steps to Reproduce on Runbot**:
1. Create a product which uses kg and g. 
2. Confirm and Validate a receipt for this product (10 kg for example). 
3. Confirm a second receipt for this product in the same UoM kg. 
4. Confirm and Validate a delivery for this product with UoM g (500 g for example).
5. View the forecasted graph for the product, and you will see that the y axis is scaled on grams ~500, and the current / future stock moves in the report are still scaled based on kg. 

opw-6234066

Forward-Port-Of: odoo/odoo#272245
Forward-Port-Of: odoo/odoo#266811

The chatter recipients input always added a "Create" option to its autocomplete dropdown, even when the field held no text. The feature that introduced this input, https://github.com/odoo/odoo/commit/3b985d2c4239fe702c1a56bef04fc112af39e954, wired that option to create a res.partner straight away. Selecting "Create" with an empty input therefore created a partner with no name, displayed everywhere as "Unnamed".

The email popover that opens for a recipient without an address then offered a Discard button, but the empty partner was already saved. The same sequence could be repeated to accumulate nameless contacts, which later raise a missing name error when opened in the Contacts app.

Only add the "Create" option when the typed term resolves to a name or an email, in getAutoCompleteSources of recipients_input.js. An input with no usable text has nothing to create from, which matches the standard many2one autocomplete that only offers creation once text is entered.

Steps to reproduce:
1. Open any record with a chatter
2. Click "Send message"
3. In the recipients field type a character then delete it, leaving the field empty with the dropdown still open
4. Click the "Create" option
5. On the "What's the email address of Unnamed?" popover, click Discard

=> A blank "Unnamed" contact is created, and repeating the steps creates more

Ticket [link](https://www.odoo.com/odoo/action-4043/5942428)
opw-5942428


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Forward-Port-Of: odoo/odoo#250973

A tax created without a fiscal position (empty fiscal_position_ids) is conceptually an "All" tax: it should apply across every fiscal position, including the empty ones used for tax units.

Problem

map_tax drops every tax when the FP has no mapping, including the "All" ones that should pass through.
action_open_related_taxes only lists the FP's tax_ids, so "All" taxes are invisible from the FP form.
The Taxes stat button is hidden whenever the FP has no tax_ids.
action_update_fpos_values invokes the field computes directly, so tax and balance lines fall out of sync after an FP change.

Fix

map_tax: when the FP has no tax_ids, return the input taxes whose fiscal_position_ids is empty (the "All" ones) instead of an empty recordset.
action_open_related_taxes: extend the domain to also include taxes bound to no fiscal position.
partner_view: drop the invisible="not tax_ids" guard on the Taxes stat button.
action_update_fpos_values: route the deferred computes through _check_balanced and _sync_dynamic_lines so tax lines stay in sync after the update.

task-id [6231514](https://www.odoo.com/odoo/project/967/tasks/6231514)
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Forward-Port-Of: odoo/odoo#272350
Forward-Port-Of: odoo/odoo#268273

Module: l10n_it_pos

Steps to reproduce:
- In the POS settings, enable "Automatic Receipt Printing";
- Enable "ePos Printer" to make the "Skip Preview Screen" option appear;
- Disable "Skip Preview Screen";
- Disable "ePos Printer";
- Set up an Italian Fiscal Printer;
- Open a POS session and process a first order.

Issue: After the first receipt, no other messages (price display, receipt, open register) are sent to the fiscal printer. A page reload is required.

Cause:
When "Automatic Receipt Printing" is true but "Skip Preview Screen" is false, a race condition occurs. `afterOrderValidation` triggers a print job while simultaneously transitioning to the `ReceiptScreen`. When the `ReceiptScreen` mounts, it triggers a second fiscal print job before the first has resolved. This creates a deadlock in `toHtml` of  `renderService`, permanently blocking the printer queue.

Solution:
Since the italian localisation sending the receipt to the fiscal printer is mandatory, the printing route is now tied to the "Skip Preview Screen" option.

Enterprise PR: https://github.com/odoo/enterprise/pull/112654

[opw-5979212](https://www.odoo.com/odoo/project/49/tasks/5979212)

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Forward-Port-Of: odoo/odoo#271685
Forward-Port-Of: odoo/odoo#256932

Issue:
Sending Debit Notes to a tax authority can cause the following error: "ValueError: The following child node is not defined in the template: DebitNote/cbc:BuyerReference"

Steps to reproduce on any database with DIAN and Colombian localization:

  1. Create a new "Sales" type journal. Then, check the checkbox “Nota de Debito”.
  2. Find a res.partner with a ref field, or add a ref field to any partner.
  3. Make an invoice using the partner found in step 2. Ensure it uses a tax. Confirm it.
  4. Send that invoice to DIAN.
  5. Create a Debit Note for that invoice. Use the journal created in step 1.
  6. Add a product, price, and tax to the debit note. Confirm it.
  7. Send the debit note to DIAN.
  
Explanation:
The `_add_invoice_header_nodes` method on the AccountEdiXmlUbl_21 model adds a BuyerReference node unconditionally. (See account_edi_xml_ubl_21.py.) But the DebitNote XML template does not include a BuyerReference element (see ubl_21_debit_note.py). This caused a ValueError when assembling the XML for debit note documents.

Solution: The fix overrides this in the Colombian localization by clearing the BuyerReference value when the document type is "debit_note". That way, the node is omitted from the output.

opw-6181039

Forward-Port-Of: odoo/enterprise#121458
Forward-Port-Of: odoo/enterprise#121422

### Issue:
When installing a new language on a database with `l10n_co_dian`, the DIAN email templates are not translated

Languages already installed when `l10n_co_dian` is installed are correctly translated, as the copy happens at that moment
Only languages installed afterwards are affected

### Cause:
The DIAN email templates are created dynamically via `_create_dian_mail_templates` as copies of the `account` templates
Because they are created at runtime, no translations exist for their XML IDs in the `l10n_co_dian` `.po` files
The `TranslationImporter` finds nothing to import for them

The fix hooks into `_load_module_terms` to sync translations from the source `account` templates to the DIAN ones whenever a new language is installed

`TranslationImporter.save()` is used without `force_overwrite`, so existing translations on `noupdate` records are never replaced
This is the standard way to push translations while preserving any manually modified values

### Notes:
Languages installed before this fix are not updated
Only newly installed languages will get the synced translations

### Steps to reproduce:
- Install `l10n_co_dian`
- Enable Developer Mode in Settings
- Install any language (e.g. `fr_FR`)
- Go in Settings > Technical > Email > Email Templates
- Search for DIAN and open Invoice or Credit Note

Before the fix, the DIAN invoice and credit note templates had untranslated name, description and body_html

opw-6269979

Forward-Port-Of: odoo/enterprise#120855