[FIX] account: Don't try to reconcile a CABA Entry line if already reconciled

Main
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For Huge Amount Invoices with small residual being paid and the Invoice and the
initial payment which almost paid, the invoice in full can render the
reconciliation of the Tax Entry Lines as fully reconciled.

Description
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In case of multi-currency transactions where CABA Journal Entries are involved,
there could be a case where, in Mexican Localization, so far, a small entry
line cannot be reconciled with their counterpart because the previous
counterparts are already reconciled. (Though this is still unproved in a lab,
i.e. UnitTest, can be seen in the wild, i.e.Customer's Production Instance)

The following is an hypothetical case yet to be proven:

        Test to validate tax effectively receivable

        My company currency is MXN.
        Invoice issued two days ago in USD at a rate => 1MXN = 0.80 USD.
        Booked like:
            Receivable          1450                1160    USD
                Revenue                 1250       -1000    USD
                Taxes to Collect         200        -160    USD (Hypothetical Fully Reconciled with A1)
        Payment issued today in USD at a rate => 1 MXN = 1.25 USD.
        Booked like:
            Bank                 927.99                1159.99    USD
                Receivable               927.99       -1159.99    USD

        And a Tax Cash Basis Entry is generated for the ratio being paid
        Booked like:
            Tax Base Account     800                1000.00    USD (sometimes this base can be rounded up and instead of being 999.99 it ends up as 1000.00 which leads to taxes to be as fully reconciled)
                Tax Base Account         800       -1000.00    USD
            Taxes to Collect     128                 160    USD (Hypothetical Fully Reconciled with A1)
                Taxes to Paid            128        -160    USD

        I will neglect to depict here the FX Journal Entry for Tax to Collect account for the hypothetical reconciliation A1. And any other FX Journal Entries.

        At this moment Invoice has a USD 0.01 residual which on same date will be tried to write-off manually.

            Write-off              0.01                   0.01    USD
                Receivable                 0.01          -0.01    USD

        At this moment Invoice has a USD 0.01 residual which on same date will be tried to write-off manually.
        This small amount will create while running in run-time following CABA Journal Entry:
            Tax Base Account     0.01                0.01    USD (sometimes this base can be rounded up and instead of being 0.00 it ends up as 0.01 which leads to taxes to be created and be tried to reconcile)
                Tax Base Account         0.01       -0.01    USD
            Taxes to Collect     0.01                 0.01    USD (Hypothetical This will be tried to reconcile with the items in Full Reconciliation A1 but raise an error)
                Taxes to Paid            0.01        -0.01    USD

closes odoo/odoo#43819

X-original-commit: 00861974c259fbbf381a597ed9d233525185a005
Signed-off-by: Laurent Smet <smetl@users.noreply.github.com>

0 files changed, 0 insertions, 0 deletions