### 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

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

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#268273