[FIX] purchase: return dropship

Backport of 4da82776ffb.
Because of e38ed7c7 the code moved between versions, but is otherwise identical.

- Set an internal location as a return location
- Create a SO with a dropship product, validate and deliver
- Return the product, and choose the internal location as the return
location.

The received quantity on the PO is counted twice.

Since the return is an 'in' move linked to a PO, it is automatically
counted as incoming quantity.

This case is quite specific, so we explicitly add an exception in case
the origin move was a dropship, but the return is not a returned
dropship.

opw-1958228

opw 2045685

closes odoo/odoo#35831

Signed-off-by: Nans Lefebvre (len) <len@odoo.com>

0 files changed, 0 insertions, 0 deletions