Currently an error occurs when the user removes the Source Entity Id Type on Super Contributions.

**Steps to Reproduce:**
 - Install `l10n_au_hr_payroll_account` with demo data.
 - Switch to an `Australian` company.
 - Go to `Payroll` > `Reporting` > `Australia` > `Super Contributions`.
 - Open an existing record or create a new one.
 - Remove the `Source Entity Id Type` value and click anywhere.

`ValueError: Compute method failed to assign l10n_au.super.stream(<NewId origin=1>,).source_entity_id`

After [change] in the selection field behavior, when the user removes the Source Entity Id 
Type, the compute method is triggered to compute the Source Entity ID. However, the 
condition in the compute method is not match, so no value is assigned. As a result, 
the method fails and raises an error.

This commit ensures that if the condition is not match, the Source Entity ID is explicitly 
set to False.

[1]- https://github.com/odoo/enterprise/blob/9d523d7aabffda277e1ef734caf2b0e434545dca/l10n_au_hr_payroll_account/models/l10n_au_super_stream.py#L61-L65

[change]: https://github.com/odoo/odoo/pull/214422/changes/8d2a42ac419fdf7943a0c11beb8c5de6c6f85bef

Forward-Port-Of: odoo/enterprise#115466

The content of an invoice's section lines is not aligned with the columns when the prices of the section are hidden and the country of origin is displayed in the invoice

Steps to reproduce:
1. Install account_intrastat module
2. Go to Invoicing > Customers > Products and create a new product with name "test" and in the Accounting tab, set the Country of Origin to Afghanistan
3. Go to Invoicing > Customers > Customers and change Acme Corporation's country to United Kingdom
4. Go to Invoicing > Customers > Invoices and create a new invoice for partner Acme Corporation, add a section line and in that section, add product "test"
5. Click on the three dots at the end of the section line and click on Hide Prices
6. Confirm the invoice and print it
7. The content of the section line in the invoice pdf are not aligned (the tax is in column Unit Price and the amount is in column Taxes)

Issue:
When a section is hidden, no column is added in the section to display the origin, resulting in a misalignment of the tax and the amount of the section

Solution:
Add a column for the origin country in hidden section lines and add the origin country in product lines of `_get_child_lines`

opw-6147929

Forward-Port-Of: odoo/enterprise#117092
Forward-Port-Of: odoo/enterprise#115442

Steps to Reproduce (Fresh Database):
--------------------------------------
1. Install `Manufacturing` (mrp) and `PLM` (mrp_plm) modules
2. Create a product > New -- Name: "Test Product" > Save
3. Create BoM v1
   - Go to Manufacturing > Products > Bills of Materials > New --Product: Test Product
   - Add component: any
4. Create and apply ECO 1 on BoM v1
   - Go to PLM > ECOs > New-- Product: Test Product | Apply on: Bill of Materials
   - BoM: Test Product (v1) > Confirm > Apply Changes
   - This creates BoM v2 (previous_bom_id = BoM v1)
5. Create and apply ECO 2 on BoM v2
   - Same as step 4 but select BoM v2
   - This creates BoM v3 (previous_bom_id = BoM v2)
6. Create a separate unrelated BoM for the same product
   - Go to Manufacturing > Bills of Materials > New
   - Product: Test Product | Component: "Component B" > Save
7. Create ECO 3 on the separate BoM
   - Go to PLM > ECOs > New - Product: Test Product | Apply on: Bill of Materials
   - BoM: select the separate BoM from step 6 > Confirm

Observed Bug:
-------------
- Open BoM v3 > ECO(s) stat button shows count = 2
- Click the button > opens 3 records (ECO 3 incorrectly included)

Explain:- 
----------
The ECO stat button on the BoM form was showing a mismatched count vs
the actual records opened when clicking it. This happened because
[button_mrp_eco](https://github.com/odoo/enterprise/blob/55bfd499660d3eda0abfc9e8ed8c9a2befbd394b/mrp_plm/models/mrp_bom.py#L56) was using all keys from [_get_previous_boms](https://github.com/odoo/enterprise/blob/55bfd499660d3eda0abfc9e8ed8c9a2befbd394b/mrp_plm/models/mrp_bom.py#L67)() as the
domain, which includes BoMs from unrelated lineages of the same product
template, while [_compute_eco_data](https://github.com/odoo/enterprise/blob/55bfd499660d3eda0abfc9e8ed8c9a2befbd394b/mrp_plm/models/mrp_bom.py#L20) only counts ECOs belonging to the
current BoM's version lineage.

Fixed by filtering the domain to only include BoM IDs whose lineage set
contains the current BoM ID, making the opened records consistent with
the displayed count.

Before Fix
<img width="1901" height="875" alt="image" src="https://github.com/user-attachments/assets/3208aed5-ebd3-47a3-a457-a7d61b7743cb" />

```
In [24]: labo = self.env['mrp.bom'].browse(710)
In [25]: previous_boms_mapping = labo._get_previous_boms()
In [26]: Test = ['&', ('bom_id', 'in', list(previous_boms_mapping.keys())), ('type', '=', 'bom')]
In [27]: Test
Out[27]:
['&',
 ('bom_id',
  'in',
  [710,
   1991,
   2049,
   1913,
   1840,
   1823,
   1676,
   1759,
   1794,
   1651,
   1604,
   1544,
   1537,
   1527,
   1506,
   1460,
   1265,
   1259,
   1196,
   1221,
   1223,
   1060,
   1029,
   960,
   858,
   850,
   791,
   739,
   723,
   698]),
 ('type', '=', 'bom')]
```

With My Fix
<img width="1824" height="947" alt="image" src="https://github.com/user-attachments/assets/0d68fdbc-7e42-4ce4-a326-2fb030ba1d06" />

```
In [15]: labo = self.env['mrp.bom'].browse(710)
In [16]: previous_boms_mapping = labo._get_previous_boms()
In [17]: previous_boms_mapping
Out[17]:
{710: {710},
 1991: set(),
 2049: set(),
 1913: set(),
 1840: set(),
 1823: set(),
 1676: set(),
 1759: set(),
 1794: set(),
 1651: set(),
 1604: set(),
 1544: set(),
 1537: set(),
 1527: set(),
 1506: set(),
 1460: set(),
 1265: set(),
 1259: set(),
 1196: set(),
 1221: set(),
 1223: set(),
 1060: set(),
 1029: set(),
 960: set(),
 858: set(),
 850: set(),
 791: set(),
 739: set(),
 723: set(),
 698: {710}}
In [18]: relevant_bom_ids = [
    ...:     bom_id
    ...:     for bom_id, current_bom_set in previous_boms_mapping.items()
    ...:     if labo.id in current_bom_set
    ...: ]
In [19]: relevant_bom_ids
Out[19]: [710, 698]
```

Task-6065020

Forward-Port-Of: odoo/enterprise#117149
Forward-Port-Of: odoo/enterprise#114039