After a recent change, the smart button for Source POs uses the reference_ids on a stock.picking. This altered the logic to fetch all orders from any picking that has the same reference. However, `subcontracting_source_purchase_count` should specifically relate to the resupply of subcontractor picking to their subcontracted purchase order.

**Steps to Reproduce:**
1. Enable multi-step routes and subcontracting
2. Unarchive the MTO route
3. Create 4 products Finished Product, A, B, C, and set MTO on both A and B
4. Put 10 units of C in stock
5. Create a BoM for Finished Product using A and B as components
6. Create a subcontracted BoM for B using C as a component
7. Set the purchase vendor for product A as the vendor
8. Set the purchase vendor for product B as the subcontractor
9. Create and confirm a manufacturing order for Finished Product
10. Confirm the POs

The two POs are:
1. Purchase Product A from its vendor
2. Subcontract Product B from its subcontractor and use Product C as a component

**Current Functionality:**
- Product A's receipt has a **Source PO** smart button pointing to the subcontracting PO for Product B (BUG)
- Product B's receipt has a **Source PO** smart button pointing to its own PO (BUG)
- Product C's picking has a **Source PO** smart button pointing to its own PO

**New functionality:**
- Product A's receipt has no **Source PO** smart button
- Product B's receipt has no **Source PO** smart button
- Product C's receipt has a **Source PO** smart button pointing to its own PO

opw-6420168

Forward-Port-Of: odoo/odoo#278908

Since [1], the registry is loaded without a request context, so a module installation now goes through the fallback of `get_current_website` that reads the url stored on the current thread. That value is a full url, not the `domain:port` the method expects, so IDNA-encoding it splits it on the dots of the path rather than on those of a host name and raises `UnicodeError` as soon as one of the resulting parts reaches 64 characters.

The thread url is now reduced to its `domain:port` part.

Steps to reproduce:
- Start the server locally on a database with demo data, served on `http://localhost:8069`, with only `Website` installed
- Create a new website
- In the configurator, choose `I want an online store`
- Go through each step
- After the last step, a traceback appears while loading the accounting demo data: the configurator should apply without error

[1]: https://github.com/odoo/odoo/commit/1ae80f9fb18c9c9e67fe0367b94f0d882c711570


Also reported here: https://github.com/odoo/odoo/issues/286432

Forward-Port-Of: odoo/odoo#288931

Step to reproduce:
------------------
- Install `pos_sale_stock` and `mrp` module.
- Go to the setting enable "Replenish on Order (MTO)"
- Create a storable product with the MTO route
- Create a Bill of Materials for the product with a storable component
- Now Create Sale order for the Product and confirm it.
- Open POS Store and settel Created sale order.
- Process toward payment and try to validate it.

Issue:
------

`AssertionError: Invalid falsy real id`

Cause:
------
When an MTO product with a manufacturing Bill of Materials is added to a Sale Order and the SO is confirmed, Odoo creates two distinct sets of stock.move records that share the same stock.reference group:

1. **Delivery moves** (picking_id → stock.picking) Created by the outgoing stock rule triggered by the MTO route. These moves are assigned to a delivery picking and have a valid picking_id.

2. **Manufacturing component moves** (picking_id = False) Created by the Manufacture route's procurement rule, which spawns an mrp.production. The raw-material moves inside an MO belong to the production order, not to any stock.picking. Their picking_id field is intentionally False by design.

Both sets of moves are linked to the same stock.reference record through the stock_reference_move_rel many2many table. This means that traversing:

    so_line.move_ids          → delivery move(s)
    .reference_ids            → shared stock.reference
    .move_ids                 → ALL moves in the group (delivery + MRP)

every move in the reference group, including MRP component moves whose picking_id is False.

- Then In PosOrder.sync_from_ui(), the code collected the IDs of all related pickings into a set for later cancellation:

https://github.com/odoo/odoo/blob/a0cdf9c33ed464b4ec8bd520e4d0523afb8dbd28/addons/pos_sale/models/pos_order.py#L111

https://github.com/odoo/odoo/blob/a0cdf9c33ed464b4ec8bd520e4d0523afb8dbd28/addons/pos_sale/models/pos_order.py#L130-L133

        waiting_picking_ids.add(move.picking_id.id)   # ← adds False for MRP moves

Because MRP moves pass the state filter ('confirmed') but have picking_id = False, `move.picking_id.id` evaluates to False (the empty recordset's falsy id), which was silently added to the waiting_picking_ids set.

Issue occur from this [commit](https://github.com/odoo/odoo/commit/515eb5ba0892a759dde32a9b2923d8ecc1e4bf74?debug=1), the ORM assertion in browse() rejects falsy IDs:

https://github.com/odoo/odoo/blob/a0cdf9c33ed464b4ec8bd520e4d0523afb8dbd28/addons/pos_sale/models/pos_order.py#L139

https://github.com/odoo/odoo/blob/9e02922f821a3b4e891e90bf9bd18448a08e66fa/odoo/orm/models.py#L5297

Fix:
---
Add guards in `sync_from_ui()`
*Inner filtered() guard* — add `m.picking_id` as the first condition so
   that MRP component moves (picking_id = False) are never iterated, preventing
   `False` from ever entering the set

---

opw-6486681

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

Issue: 
-
Public holidays from other companies were incorrectly included in the Timesheet Grid view of the current company. As a result, days corresponding to those holidays appeared greyed out.

Cause:
-
The `grid_unavailability` method relies on the `_get_valid_work_intervals` function to fetch all unavailability data at once. When fetching data for multiple employees, this function also retrieves public holidays from all companies.

Fix:
-
The method no longer uses the data returned by `_get_valid_work_intervals` for company unavailable days. Instead, it now always makes a separate, direct call via the `get_company_unavailable_dates()` function. This ensures that only holidays relevant to the current company are considered in the grid view.
The company is also passed in the domain of `_work_intervals_batch`, which otherwise returns the leaves of every company when no resource is given.

Steps to reproduce:
-
1. Create Company A and Company B.
2. In Company B, create a public holiday on Tuesday.
3. Switch back to Company A.
4. Open the All Timesheets Grid view from Company A.

Expected behavior:
-
- The grid column for Tuesday should not be grey for Company A users.

Current behavior:
-
- The grid column for Tuesday is grey, incorrectly showing it as a time-off day.

task:4492966

Forward-Port-Of: odoo/enterprise#132030
Forward-Port-Of: odoo/enterprise#88495

**Steps to reproduce:**
- Install Appointment app
- Create an appointment type based on resources, auto-assigned, with two shareable resources linked together
- Set the first resource's capacity to 3 and the second resource's capacity to 4
- From the backend Gantt view, create a booking for 2 people on the first resource
- Create a second booking for 2 people on the same resource, at the same date and time
- First resource is now overbooked with reserved capacity of 4 out of 3
- Try to create an appointment from the website
- Error: "The capacity reserved should be positive."

**Issue:**
When bookings are created from the backend gantt view, the selected resource can be overbooked even if another linked resource still has available capacity.

Then when trying to book an appointment the new booking lines will trigger this constraint:
```py
_check_capacity_reserved = models.Constraint(
    'CHECK(capacity_reserved >= 0)',
    "The capacity reserved should be positive.",
)
```
This is caused by the negative values in:
```py
booking_line_values = []
if appointment_type.schedule_based_on == 'resources':
    capacity_to_assign = asked_capacity
    for resource in resources:
        resource_remaining_capacity = resources_remaining_capacity.get(resource)
        new_capacity_reserved = min(resource_remaining_capacity, capacity_to_assign, resource.capacity)
        capacity_to_assign -= new_capacity_reserved
        booking_line_values.append({
            'appointment_resource_id': resource.id,
            'capacity_reserved': new_capacity_reserved,
            'capacity_used': new_capacity_reserved if resource.shareable and appointment_type.resource_manage_capacity else resource.capacity,
        })
```

**Fix:**
Avoid negative remaining value in resource booking when computing available slots.

Note: Tried to take the capacity already used by overlapping bookings into account when assigning resource booking lines from the backend gantt view. And also force linked_resources booking when trying to book more
than the total capacity to properly dispatch as many slots as possible. But it was breaking `appointment_google_reserve` tests.

opw-6503147

Forward-Port-Of: odoo/enterprise#131752
Forward-Port-Of: odoo/enterprise#130520

Steps to reproduce:
- Create a DB and Install `Accounting` without demo data
- In Companies > Create New Company with `US` Localization
- Switch to US Company > Add `Avatax` Credentials
- Create a Product with `Avatax Category`
- Create a Invoice > In Other Info `Fiscal Position` - `Automatic Tax Mapping (AvaTax)` > `Compute Taxes`
- In Taxes check newly created tax does not have a account ID

Issue:
AvaTax fiscal position created from chart templates have empty `avatax_invoice_account_id` and `avatax_refund_account_id` fields on a fresh database without demo data.

Problem:
Both fields use [defaults] based on `company.account_sale_tax_id`. During initial CoA loading, `_load_data()` creates the AvaTax fiscal position before `_post_load_data()` sets `company.account_sale_tax_id`. The defaults therefore resolve to an empty recordset and no tax account is assigned. This issue does not occur in databases with demo data because the demo company is already loaded, so `company.account_sale_tax_id` is already set when the AvaTax fiscal position is created.

Solution:
Set the invoice and refund accounts explicitly in the AvaTax fiscal position template to ensure they are correctly assigned during CoA loading.

[defaults]: https://github.com/odoo/enterprise/blob/de17c107651394025e9a3d5cbed8d81bcfc2e76d/account_avatax/models/account_fiscal_position.py#L9-L13

opw-6347128

Forward-Port-Of: odoo/enterprise#132005
Forward-Port-Of: odoo/enterprise#126604

Steps to reproduce:
===================
1. Publish a combo product whose choices each offer more than one item, so the combo configurator is shown.
2. On the shop, open the product and click "Add to Cart".
3. Select an item for one combo choice only. The dialog's "Add to cart" button stays disabled.
4. Remove the `disabled` attribute from that button with the browser developer tools and click it.

=> The combo is added to the cart with one of its choices unanswered, and the order can be paid in that state.

Root cause:
===========
The incomplete selection is only prevented on the client side, by disabling the button until every choice has been answered. Server side, `/website_sale/combo_configurator/update_cart` only rejects a completely empty selection, never that the selected items cover every choice.

Fix:
====
Reject the request unless the selected combo items cover exactly the combo choices of the product. Comparing the set of choices rather than counting the items also rejects a selection answering the same choice twice while leaving another one unanswered.

opw-6478837

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

Forward-Port-Of: odoo/odoo#286989
Forward-Port-Of: odoo/odoo#283465

Steps to reproduce:
===================
1. Create a storable product with two variants and untick "Continue selling when out-of-stock".
2. Leave the first variant at 0 in stock, put some stock on the second one.
3. try the "Add to Cart" option of the shop page.

=> The product has no add to cart button, as if it were sold out, while its second variant can be bought. Reordering the variants so that the one in stock comes first brings the button back.

Root cause:
===========
`product.template._is_sold_out()` delegates to `product_variant_id`, which is `product_variant_ids[:1]`, so a whole template is declared sold out on the sole basis of its first variant. `_website_show_quick_add()` then hides the button for the template, whatever the stock of the other variants.

The helper has looked at that single variant since it was written:

- [1] added it to hide the button of sold out products.

Fix:
====
Consider the template sold out only when all of its variants are. The check stops at the first variant in stock, so a product that can be bought still costs a single stock lookup.

[1]: https://github.com/odoo/odoo/commit/4ae197cc770cec2058e1f113209c4f93a4a0f4b2
opw-6520052

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

Forward-Port-Of: odoo/odoo#287882
Forward-Port-Of: odoo/odoo#286781

The Time Off Ledger report shows the same "Expected Hours" value for every working day of an employee, even when their working schedule assigns different hours to different weekdays.

### Steps to reproduce:
1) Install hr_holidays_attendance.
2) Create/assign a working schedule where daily hours vary across the
   week (e.g. Monday-Thursday 8.5h, Friday 5h).
3) Go to Attendance > Reporting > Time Off Ledger, filter on that
   employee.

### Observed behavior:
"Expected Hours" is identical on every day (the schedule's average hours/day), regardless of which weekday the row is for.

### Expected behavior:
"Expected Hours" should match the hours actually scheduled for that specific weekday, so a shorter Friday shows less than a full Monday.

### Root cause:
`Time off Ledger` is a SQL view.
Its `_select()` builds `expected_hours` from `rc.hours_per_day` at [1], i.e. `resource.calendar.hours_per_day`, a field explicitly labelled **"Average Hour per Day"** and is computed via [_get_hours_per_day] as `hours_per_week / days_per_week`,
a single flat value for the whole calendar.

The per-weekday hours are available in `resource.calendar.attendance` it stores `dayofweek`, `hour_from`/`hour_to` and a computed `duration_hours` per line, and can legitimately differ per weekday (e.g. Monday 8h vs Friday 4h) at [2]. The report's own [_cte_cal_workday()] CTE already reads this table to decide whether a weekday is a working day (`cal_workday`, joined as `cw` in `_from()`), but discarded the actual hours, keeping only `(calendar_id, dayofweek)`. `_select()` then fell back to the calendar-wide average via `rc.hours_per_day` instead of the per-day value.

Example: calendar with Monday 8h and Tuesday 4h -> `hours_per_day` averages to 6h; the report showed 6h on both Monday and Tuesday instead of 8h and 4h respectively.

[1]- https://github.com/odoo/odoo/blob/5568f6e472e2e53bc2931e744421015b0f0f3550/addons/hr_holidays_attendance/report/hr_leave_attendance_report.py#L256

[_get_hours_per_day]: https://github.com/odoo/odoo/blob/5568f6e472e2e53bc2931e744421015b0f0f3550/addons/resource/models/resource_calendar.py#L703-L707

[2]- https://github.com/odoo/odoo/blob/5568f6e472e2e53bc2931e744421015b0f0f3550/addons/resource/models/resource_calendar_attendance.py#L15-L31

[_cte_cal_workday()]: https://github.com/odoo/odoo/blob/5568f6e472e2e53bc2931e744421015b0f0f3550/addons/hr_holidays_attendance/report/hr_leave_attendance_report.py#L82-L89

### Fix:
`_cte_cal_workday()` now aggregates `SUM(duration_hours)` per `(calendar_id, dayofweek)` from `resource_calendar_attendance`, instead of just selecting the distinct keys. `_select()` reads this per-weekday value (`cw.hours_per_day`) instead of the calendar-wide `rc.hours_per_day` for both `expected_hours` and `difference_hours`.

**opw-6425167**

Forward-Port-Of: odoo/odoo#280664

### Steps To Reproduce:

- Add this content in the HTML editor:
`<h2 class=display-3-fs>heading 2</h2>`
- Select the heading text.
- Click Remove Format.
- Check the font-size input in the toolbar.

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

- The font-size class was removed from the block element, but the font-size input still displayed the value associated with the removed class.
- The toolbar did not show the correct font size for default block classes (like `o_default_font_size`).
- Applying a new font size inside default block classes created nested spans instead of splitting them.
- The "Remove format" button remained enabled even when selection had no custom formatting (only default block classes).

### Desired behavior after PR is merged:

- The font-size input is updated after removing the font-size class and correctly displays the font size of the resulting block element.
- Update the `getFontSizeDisplayValue` utility to find correct CSS variable dynamically to also find the font size of default block classes.
- Add default font size classes (like `o_default_font_size` and headings) to `format_class_predicates` resource in `font_plugin.js`. This allows them to be split and replaced instead of creating nested spans.

task-6321166

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

Forward-Port-Of: odoo/odoo#272023

The mobile summary element hides the address form on Android

Steps to reproduce:
1. Install eCommerce
2. On android (or using browserstack) and without being logged in, go to the eCommerce
3. Add any product to the cart and go to checkout
4. Click on "Checkout" to enter the address details
5. Open the keyboard by clicking inside the first input
6. The virtual keyboard opens, enter a name and click on "Next" in the virtual keyboard
7. Do this a couple of times: the cart summary element doesn't scroll and the input field is hidden behind it

Similar problem happens when you scroll a bit after clicking in the first input: the cart summary element displayed at the bottom is still visible (on top of the virtual keyboard) which hides part of the page and makes it difficult to navigate the page and fill in the details

Issue:
`sticky-bottom` keeps the element at the bottom of the screen

Solution:
Remove class `sticky-bottom` from `o_mobile_summary` when we click in one of the input

opw-6500503

Forward-Port-Of: odoo/odoo#287464

Steps to reproduce:
----------------------------------------
- Have a Time Off Type with approval "By Time Off Officer"
- Have two users with employees and without any rights on Employee or Time Off
- Set the second user as time off approver and Hr responsible on the first one
- As the first user create a Leave request with the thime off type of the first step **First issue:**
- As the second user, open Time Off > Management > Time Off
- The request appear in "Waiting For Me" but we cannot approve it, the buttons aren't there
- Same on the form view **Second issue:**
- As the second user, open Time Off > Overview
- Remove the "My Team" filter to see the leave request
- Click on it, then click "Approve"
- `Validation Error: You are not allowed to approve this leave request.`

Cause:
----------------------------------------
**First issue:**
The field `can_approve` is computed through `_check_approval_update()` which calls `_get_next_states_by_state()` to see which states are accessible. In the `if` section of `is_time_off_manager` we prevent the 'hr' validated time off type leaves from being refused and validated. So only Time Off officers can approve or refuse them.

**Second issue:**
`action_approve()` in `HrLeaveReportCalendar` prevents the aprobation if `leave_validation_type` is not `manager` or `both`.

Solution:
----------------------------------------
**First issue:**
We also add the possible state `validate` and `refuse` for `hr` validated time off type leaves if the current user is the HR responsible of the employee on the leave.

**Second issue:**
Also allow `hr` for `leave_validation_type` in `action_approve()` in `HrLeaveReportCalendar`.

To make everything work, we also add a condition on `employee_id.hr_responsible_id` in the record rules allowing the HR responsible to see the leaves. And we adapt the `write()` on `hr.employee` and `_clean_leave_responsible_users()` to automatically add/remove HR responsibles from the group `hr_holidays.group_hr_holidays_responsible`.

opw-6545508

### Steps to reproduce

Set a credit limit of 1.000 on a customer, then:

1. Create a Sale Order for a product with Invoice Policy on **Delivered Quantities**, over that amount → the warning shows. Good.
2. Confirm it, and deliver nothing.
3. Create a second order for the same customer → the warning never shows, even though the customer is already over the limit.

### Solution

The ordered quantity is what the customer committed to, delivered or not. Using `qty_to_invoice` instead of `uom_qty_to_consider` or `qty_delivered`

Introducing invoice_status in sales domain for `_compute_credit_to_invoice`: `untaxed_amount_to_invoice` still follows the invoicing policy, while `amount_to_invoice` no longer does. On a confirmed order for a delivery-based product with nothing delivered:

```
    line.untaxed_amount_to_invoice = 0       # still gated by qty_delivered
    line.invoice_status            = 'no'
    order.amount_to_invoice        = 2000    # fixed by this PR
```

The domain filters on the first one, so the order is dropped from the search before its amount is ever read and `credit_to_invoice` stays at 0.`'no'` is the stored marker for a confirmed line that is not invoiceable yet, which is exactly what the first clause misses.

ticket: [6480211](https://www.odoo.com/odoo/project/967/tasks/6480211)

Forward-Port-Of: odoo/odoo#288659
Forward-Port-Of: odoo/odoo#285578