**Issue**
When rental transfers are enabled and rental pickups/returns are processed through stock pickings, it may become impossible to perform a subsequent rental return through the rental return wizard.

**Steps to reproduce**
- Activate "Rental Transfers" in the settings
- Create a rental product P, tracked by serial number
- Create two serial numbers for P
- Create and confirm a rental order for 2 units of P
- Validate the pickup transfer
- Partially validate the return transfer without creating a backorder
- Open the rental order and click on "Return" 
-> The return wizard opens without any available serial number and validation fails with a serial number-related error.

**Cause**
When clicking on "Return", if there is no pending pickup/return transfer: https://github.com/odoo/enterprise/blob/d1ba2417affb81c4351ab9f86bc0a6ad5ceb8caf/sale_stock_renting/models/sale_order.py#L62-L68 the rental return wizard is opened directly:
https://github.com/odoo/enterprise/blob/d1ba2417affb81c4351ab9f86bc0a6ad5ceb8caf/sale_renting/models/sale_order.py#L316 No serial number is prefilled in the wizard because `returned_lot_ids` is empty: https://github.com/odoo/enterprise/blob/d1ba2417affb81c4351ab9f86bc0a6ad5ceb8caf/sale_stock_renting/wizard/rental_processing.py#L122-L124 This is because `returnable_lot_ids` is empty as well. `returnable_lot_ids` is computed while generating the wizard lines: https://github.com/odoo/enterprise/blob/d1ba2417affb81c4351ab9f86bc0a6ad5ceb8caf/sale_renting/wizard/rental_processing.py#L38 https://github.com/odoo/enterprise/blob/d1ba2417affb81c4351ab9f86bc0a6ad5ceb8caf/sale_renting/wizard/rental_processing.py#L47-L48 https://github.com/odoo/enterprise/blob/d1ba2417affb81c4351ab9f86bc0a6ad5ceb8caf/sale_stock_renting/wizard/rental_processing.py#L99-L106 and `returnable_lots` is empty because both `pickedup_lots` and `returned_lots` are. Those fields are currently only populated through the rental wizard flow: https://github.com/odoo/enterprise/blob/d1ba2417affb81c4351ab9f86bc0a6ad5ceb8caf/sale_stock_renting/wizard/rental_processing.py#L42-L43 https://github.com/odoo/enterprise/blob/d1ba2417affb81c4351ab9f86bc0a6ad5ceb8caf/sale_stock_renting/wizard/rental_processing.py#L160-L161 https://github.com/odoo/enterprise/blob/d1ba2417affb81c4351ab9f86bc0a6ad5ceb8caf/sale_stock_renting/wizard/rental_processing.py#L166-L167

Since this flow uses stock pickings instead of the rental wizard, those fields are never updated, preventing the wizard from determining any returnable serial number.

opw-6150305

### Issue before this commit:
When an invoice's CFDI cancellation request is confirmed (state moves from sent to cancel), reprinting the invoice PDF no longer displays the fiscal information (QR code, digital stamps, fiscal folio/UUID, etc.), even though the signed CFDI attachment is still present on the invoice.

### Steps to reproduce the issue:
1. Download Accounting and l10n_mx
2. Create an invoice and send it to CFDI
3. Select 'Request for cancel'
4. Wait and click retry button in the CFDI tab until the invoice is marked as cancelled
5. Print the invoice again
6. See PDF does not show fiscal information (QR, fiscal folio, etc.)

### Cause of the issue:
https://github.com/odoo/enterprise/blob/f6c94d4ca3ef4211a5ab00bf0b39f6a7675c8f79/l10n_mx_edi/models/account_move.py#L904-L909 Once the CFDI is cancelled, the computed field switches to 'cancel', so the condition fails and the method falls back to the generic account.report_invoice_document template, which has no knowledge of CFDI fiscal fields.

### Reason to introduce the fix:
A cancelled CFDI invoice is still a legally relevant fiscal document in Mexico and must be reprintable with its fiscal data intact (to prove it was issued and later cancelled). The fix extends the condition to also cover the 'cancel' state, ensuring the CFDI-specific report template is used whenever a valid attachment exists, regardless of whether the CFDI is currently signed or cancelled.

opw-6393656

Currently, when a quotation is created from a repair order generated from a helpdesk ticket, 
the salesperson is not set on the quotation even if the customer has a salesperson assigned.

**Steps to Reproduce:**

 - Install `helpdesk_repair`.
 - Go to `Helpdesk` > `Configuration` > `Helpdesk Teams`.
 - Open a team recod and enable `Repairs`.
 - Create a `contact/customer` with a `salesperson` assigned.
 - Go to `Helpdesk`, create a ticket for that `customer`, and select the `helpdesk team` 
   configured above.
 - Click `Repair`, then click `Create Quotation`.
 - Open the quotation and check the `Salesperson` field in the `Other Info` tab.

**Current behavior:**
The Salesperson field on the quotation remains empty.

**Expected behavior:**
The Salesperson field on the quotation should inherit the salesperson assigned to the 
selected customer/contact.

**Cause of the issue:**
When a repair order is created from a helpdesk ticket, default_user_id [1] is passed in the context . 
This value is propagated when creating the repair order [2] . Later, when creating the quotation from 
the repair order [3], the same context is reused.
Because default_user_id is already present in the context, it overrides the precomputation of user_id 
from the customer. As a result, user_id is initialized with an empty value and remains unset.

**Fix:**
This commit ensures that default_user_id is removed from the context before creating the 
sale order. Without a default value for user_id, the field is correctly precomputed from the 
selected customer, and the salesperson is properly assigned.
[1]- https://github.com/odoo/enterprise/blob/2662932c7ac8ebf3ed5a05d44d7ebfaff869fcbd/helpdesk_repair/models/helpdesk_ticket.py#L52

[2]- https://github.com/odoo/enterprise/blob/2662932c7ac8ebf3ed5a05d44d7ebfaff869fcbd/helpdesk_repair/models/helpdesk_ticket.py#L36-L40

[3]: https://github.com/odoo/odoo/blob/29328b8fccff833c14de317b51f3b4e5a8c40f75/addons/repair/models/repair.py#L357

opw-6344939

Forward-Port-Of: odoo/enterprise#126310
Forward-Port-Of: odoo/enterprise#122980

When reconciling bank statements with an account, the system will look for past statement lines already reconciled with that account and create a reconciliation model based on common substring in payment_ref.

If this payment refs contains only spaces (eg. ' '), it will trigger an index out of range traceback. This is explained by the fact that spaces are striped then '' is considered as False in some filtering leaving the list empty.

From the UI, putting ' ' is not supposed to be possible because spaces are striped before write but there is many ways to import statement lines which may lead to this hence the decision of handling this scenario to make the code more robust.

Steps to reproduce:
1/ Create two statement lines with payment_ref as ' ' (you can force it using a write)
2/ Click "Set account" on first one and pick 100000 Issued Capital
3/ Do the same for the second statement line
=> Traceback

In this commit, we do not check for common substring if there is less than two
labels.

opw-6379977

**Steps to reproduce:**

- Enable "Move Entire Packages" setting on deliveries
- Make a product A, that has a package P1, on hand qty of 1
- Make product B that don't have a package, but on hand qty of 1
- Make a delivery that has both of those products, requested qty of 1 for both
- Mark it as todo
- Go to the barcode app, select the delivery
- Select the line with product B
- Select the line with product A
--> The line with product B is not unselected

**Why the fix:**

When we have a mix of packaged products and products without a package on the same operation, they are handled separately.
The products without a package are handled in https://github.com/odoo/enterprise/blob/98c79af3fb6cb354f46fd2f58e642a72a9271443/stock_barcode/static/src/models/barcode_model.js#L388-L392 
that calls https://github.com/odoo/enterprise/blob/98c79af3fb6cb354f46fd2f58e642a72a9271443/stock_barcode/static/src/models/barcode_model.js#L1277-L1284 
But as you can see, there are no mention of the selected package line, which is stored in **this.lastScanned.packageId**.

As we do not touch this variable, the selected package line stays selected.

The same is true for the other way around, when we select a package line we call https://github.com/odoo/enterprise/blob/98c79af3fb6cb354f46fd2f58e642a72a9271443/stock_barcode/static/src/models/barcode_model.js#L394-L398 
This function does not care for the **selectedLineVirtualId** which represents the selected line without a package.

To avoid this and make it so that only one line is selected even if they have different package, we now set the corresponding value to false to unselect the other line in all situation.

This is basically how it's done in https://github.com/odoo/enterprise/blob/98c79af3fb6cb354f46fd2f58e642a72a9271443/stock_barcode/static/src/models/barcode_model.js#L1202-L1208 
to unselect every line regardless of packages.

opw-6266203

Forward-Port-Of: odoo/enterprise#125356
Forward-Port-Of: odoo/enterprise#122038

### Issue:
When accessing the Bank Reconciliation view directly via URL or bookmark, auto-matching with reconciliation models may not trigger and the upload button may be visible on synchronized journals

### Cause:
`_action_open_bank_reconciliation_widget` injects two context keys:
- `auto_statement_processing`: triggers auto-reconciliation on statement creation
- `bank_statements_source`: hides the upload button for synchronized journals

When the view is accessed directly, these keys are not present, causing the UI to ignore them

`auto_statement_processing` is now set directly in the user context via `onWillRender`/`onWillDestroy` in `BankRecKanbanController` `bank_statements_source` requires an ORM call to fetch the journal's value and is resolved via `fetchBankStatementsSourceInto` on startup

Notes:
The fix for `bank_statements_source` was added opportunistically while addressing `auto_statement_processing`

Steps to reproduce:
- Install `accountant` with demo data
- Duplicate the Bank Journal and set Bank Feeds to Online Synchronization
- Open the Accounting Dashboard and open the Bank (copy)
- Create a transaction (Label: Test, any amount) and click Add & Close
- In the 3 dots menu, choose Manage Models
- Create a Reconciliation Model (Label contains: Test, Lines: any account, default values)
- Click Automate
- Go back to the Bank Reconciliation page and verify:
 -- The transaction is reconciled automatically
 -- No Upload button is displayed
- Create a new transaction, it should be reconciled automatically
- Copy the URL and open it in a new tab
- Create a new transaction

Before the fix, the transaction is not reconciled and the Upload button is present

opw-6391107

…ty of employees

purpose:
1- We should have a consistent way to compute `_gantt_unavailability` of employees in time off and attendance. Currently, some cases have inconsistent behavior such as out of contract days, flexible and fully flexibe employees. 2- In time off calendar view, if the employee does not have a contract at all, the current working schedule will appear in the calendar and it will not be greyed out. This is inconsistent with the behavior of the attendance application.

Fix:
1:
- implemented `_get_employee_unavailable_intervals` in employee model to be used in both time off and attendance.
    - more optimized than the old implementation in time off as it calls `_work_intervals_batch` once per calendar instead of calling it for each contract in `_unavailable_intervals_batch`
    - greys out "out of contract" periods
    - for flexible and fully flexible employees, the whole period is considered available except leave periods
- made `_get_calendar_periods` use version date start instead of contract date start and corrected a bug in tz conversion 2:
- made `_get_unusual_days` return True for all the days outside of contracts for the employee instead of not returning anything for them or getting values from the working schedule of the employee (means that they will be greyed out in the callendar view) and added a test for it

task-id: 5473055

Steps to reproduce:
- set the company currency to XCG
- set the PoS sales journal currency and the PoS pricelist currency to USD
- configure a XCG <-> USD rate
- create a customer without any outstanding balance
- open the PoS, create an order of USD 100 and validate it with the Customer Account (Pay Later) payment method
- open the Customers screen and look at the Total Due of that customer

Issue:
The Total Due shows about USD 55.56, i.e. the amount converted once too many, instead of the expected USD 100.

Cause:
get_total_due() sums two amounts that are not expressed in the same currency before converting them. partner.total_due comes from the accounting entries, it is the sum of account.move.line.amount_residual and is therefore in company currency, while total_settled is the sum of pos.payment.amount of the still open sessions, which is in the currency of the order, so the PoS one. The addition is done first and the result is then converted from the company currency to the PoS one, so the pay later payments end up converted a second time.

opw-6403320

Forward-Port-Of: odoo/enterprise#126290
Forward-Port-Of: odoo/enterprise#125798