[FIX] account: caba flow with tax group

Accounting > Configuration > Settings > Enable cash basis
Create [Tax 1] as follows:
- Name: Tax Exigible
- Tax Type: "Purchase".
- In the Tax Repartition Lines, add a different tag for each repartition line
- Tax Exigibility "Based on Payment".
Create [Tax 2] as a standard tax for purchase
Create a [Tax Group] as "Group of Taxes" using [Tax 1] and [Tax 2].
Create a Bill that uses [Tax Group], Confirm and Register payment.

Issue:
The CABA entry will not have tax and tax tags set up correctly,
[Tax 1] information will be missing.
Because tax information is missing during the creation of CABA entry
an exchange rate is created when it is not necessary

opw-3435601

closes odoo/odoo#131813

X-original-commit: 82f6ef76
Signed-off-by: John Laterre (jol) <jol@odoo.com>