The deposit is not deducted when the invoice is generated automatically after delivery.

[prioueric]

Module

[16] Partner Invoicing Mode At Shipping

Describe the bug

When a sales invoice is generated automatically after delivery, it does not include the amount(s) already invoiced by way of a down payement.
Cette nouvelle facture se base sur les quantités livrées moins les facturées

To Reproduce

Affected versions: 16 & 16e

Steps to reproduce the behavior:

1. create SO with storable product
2. create down payement
3. do delivery

Expected behavior
The final invoice must include the down-payment line (or an option must be proposed as for the standard with the "deduct_down_payments" field).

Additional context
Add any other context about the problem here. (e.g. OS, Python version, ...)