[16.0][FIX] account_reconcile_oca: Fix currency and amount when using reconciliation models

[sergiobstoj]

When using manual reconcile model to reconcile, the amount in currency is not properly updated.

Steps to reproduce in runbot:

1. Create Journal with foreign currency (for example EUR) and bank type.
2. Create Reconciliation Model as writeoff_button type with some account in counterpart entries.
3. Go to Dashboard -> Get into journal created in step 1 -> Create.
4. Set any amount and any label and Save it.
5. Click on your statement and click on reconciliation model button.
6. Amount in currency has the wrong currency and wrong amount.

wrong-currency-rec-model.mp4

Behaviour with PR:

Reproducing the same steps, currency and amount are now correctly displayed.

correct-currency-rec-model.mp4

[OCA-git-bot]

Hi @etobella,
some modules you are maintaining are being modified, check this out!

[victoralmau]

Code and functional review OK

[pedrobaeza]

Is this still in draft?

[sergiobstoj]

it's ready!

[pedrobaeza]

/ocabot merge patch

Please fw-port it to upper versions.

[OCA-git-bot]

What a great day to merge this nice PR. Let's do it!
Prepared branch 16.0-ocabot-merge-pr-792-by-pedrobaeza-bump-patch, awaiting test results.

[OCA-git-bot]

Congratulations, your PR was merged at cec1221. Thanks a lot for contributing to OCA. ❤️