**Steps to reproduce:**
* Install the **Accounting** and **l10n_br_edi** modules.
* Create and post a Brazilian customer invoice using an **Avatax fiscal position**
* [Guide to setup EDI for l10n_br](https://docs.google.com/document/d/1CSUKpnyhty5WBqUDBE-7dGvu0qxaC5vQ0loz0fYNg04/edit?tab=t.0)
* Confirm the invoice and **send it to e-invoice (Brazil)**.
* Confirm the **Brazil E-Invoice Status** shows **'Accepted'**.
* Click **Request Cancellation**, enter a cancellation reason, and submit the request.

**Observed behavior:**
* The invoice moves to **Cancelled** state.
* The cancellation XML is generated and attached in the chatter.
* SEFAZ returns a successful cancellation response.
* However, the **BR EDI Status** becomes **empty**, instead of reflecting **'Cancelled'**.

**Cause:**
* In the wizard `l10n_br_edi.invoice.update`, both `_finalize_update()` and `_submit_services()` assign `l10n_br_last_edi_status = 'cancelled'` **before** calling `button_cancel()`.
* `button_cancel()` internally triggers `button_draft()` for posted invoices.
* The Brazil EDI override of `button_draft()` resets `l10n_br_last_edi_status = False`.
* This clears the status that was just set, leaving the field blank.

**Fix:**
* move `l10n_br_last_edi_status = "cancelled"` to `button_cancel()` method.

opw-5378542

Forward-Port-Of: odoo/enterprise#101438

### Issue:
In multicompany, when we generate the Partena export file of the 'not active' company, the partena code of the active company is inputted in the file.

### Steps to reproduce:
- Install 'l10n_be_hr_payroll_partena' and switch to a Belgian company
- Make sure the company has a "Partena Affiliation Number"
- Create an employee for this company, with a "Partena code"
- Create a contract for this employee, set it a running
- Create a new Belgian company with a different "Partena Affiliation Number"
- Activate both Belgian companies, but set the second one as active
- Payroll > Reporting > Export work entries to Partena
- Create a new one, populate it with the employee just created
- Click "Generate Export File"

### Cause:
When getting the data for the CSV file, we use `self.env.company` which is the active company. So when this company is not the one of the export record, we input the wrong code values.

### Solution:
Use `self.company_id` instead of `self.env.company_id`.

Also adds the test class with basic tests.

opw-5345786

Forward-Port-Of: odoo/enterprise#101110