The fix introduced in https://github.com/odoo/enterprise/commit/9e9c99712ad4b9d58dc7601da41a852e457ad097 didn't account for the fact that `post.get('media_url') ` could return a None value, which in turn would raise en error when trying to concatenate the value later.

This in turn:
- will block syncing of instagram instagram posts
- will raise a traceback when you open the Social Marketing module and the auto-sync kicks in.
### Example traceback
```
Traceback (most recent call last):
[...]
  File "/home/odoo/src/enterprise/saas-19.2/social_instagram/models/social_stream.py", line 86, in _fetch_stream_data
    return self._fetch_instagram_posts()
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/odoo/src/enterprise/saas-19.2/social_instagram/models/social_stream.py", line 64, in _fetch_instagram_posts
    values['message'] = (values['message'] + "\n" + post.get('media_url')).strip()
                         ~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
TypeError: can only concatenate str (not "NoneType") to str
```

### Solution:
Fallback to an empty string if `post.get('media_url')` yields a None value.

OPW-6449357

Forward-Port-Of: odoo/enterprise#127049
Forward-Port-Of: odoo/enterprise#126987

**Steps to reproduce:**
* Install the **Netherlands - SBR** (`l10n_nl_reports_sbr`) and **Netherlands - SBR OB Nummer** (`l10n_nl_reports_sbr_ob_nummer`) modules.
* Create two companies with Dutch localization.
* Go to **Accounting → Configuration → Tax Units** and create a Tax Unit with its own **Tax ID** (e.g. `NL826317558B01`), adding both companies.
* On the main company form, fill in the **Omzetbelastingnummer** field (e.g. `123456782B90`).
* Go to **Accounting → Reporting → Tax Return**, select the Tax Unit in the filter, and click **XBRL → Download XBRL File**.

**Observed behavior:**
* The `<xbrli:identifier>` in the exported XBRL file contains the company's **Omzetbelastingnummer** (`123456782B90`) instead of the Tax Unit's VAT (`826317558B01`).
* The tax authority rejects the return because the identifier does not match the fiscal unity registration.

**Cause:**
* `_get_sbr_identifier()` in `l10n_nl_reports_sbr_ob_nummer` unconditionally returns `self.env.company.l10n_nl_reports_sbr_ob_nummer` before consulting the Tax Unit.
* The `super()` call, which correctly routes to `tax_unit.vat` via `report.get_vat_for_export()`, is only reached when the company field is empty — so the Tax Unit's VAT is never used when a company OB-number is set.

**Fix:**
* When a Tax Unit is active in the report options, delegate immediately to `super()._get_sbr_identifier()`, which resolves `tax_unit.vat` through the existing `get_vat_for_export()` logic.
* The company-level `l10n_nl_reports_sbr_ob_nummer` override is preserved as a fallback for the `company_only` (no Tax Unit) case.

opw-6350840

Forward-Port-Of: odoo/enterprise#126999
Forward-Port-Of: odoo/enterprise#125167

## Current behavior:
The user Partner Commissions access rights as All Documents or Own Documents and Purchase access rights as User. With this configuration, the user is unable to create new Purchase Orders, and existing Purchase Orders are also not visible in the Purchase module.

## Expected behavior:
The expected behavior is that the user should be able to create and view Purchase Orders with these access rights. Additionally, clarification is required regarding the purpose of the new Partner Commissions access group.

## Steps to reproduce:
- Go to user and assign Partner Commission rights as All or own document.
- On Purchase, select group as User.

## Cause of the issue:
partner_commission adds commission-specific purchase order record rules, but purchase users have no matching purchase-order rule in that module. For mixed-role users, the commission rule ends up restricting standard purchase orders as well.

## Fix:
Apply the module's explicit all-purchase rule to purchase users so mixed users keep base procurement access while commission-only users remain restricted by the commission rules.

opw-6366074

Forward-Port-Of: odoo/enterprise#126003

**Description**

When printing the legal PDF of a CFE, the report can request a dedicated addenda page (`adenda=true` report parameter) when the addenda does not fit in the small box of the standard report (roughly 6 lines of 140 characters).

`l10n_uy_edi_document._get_report_params()` computed the addenda by calling `self.move_id._l10n_uy_edi_get_addenda()` directly. For e-remito EDI documents created from stock pickings, `move_id` is not set, so the addenda was always empty and the dedicated addenda page was never requested for delivery guides.

**Changes**

- Resolve the addenda from the document origin record: reuse the existing `_get_origin_record()` abstraction. Add it on `l10n_uy_edi.document` (returns the move) and let `l10n_uy_edi_stock` extend it to fall back to `picking_id`; `_get_report_params()` now reads the addenda through it.
- Remove a no-op `_get_pdf()` override in `l10n_uy_edi_stock`.
- Add a unit test covering the dedicated addenda page threshold (6 lines x 140 chars) for delivery guides.

**Note**

This PR replaces branch `adhoc-dev:18.0-t-stock-edi-addenda-fix-kz` (original authorship preserved); resubmitted from a new branch to keep follow-up and tracking with the current maintainer.

Forward-Port-Of: odoo/enterprise#124539