When the user validates a picking without going through the manual
reservation process, Odoo tries to assign the picking then performs the
transfer. However, if the picking could not be assigned, no pack
operation is created and the picking will simply be set to done.
The fix raises an error if the picking could not be assigned completely.
Another solution is to use a force_assign instead of action_assign, but
that could lead to the creation of negative stock moves without warning
the user. We therefore prefer to stay on the safe side and force the
user to manually handle the reservation.
Note: the original issue was that the Owner of the picking was not
copied on the quant when validating right away. The reason was that no
pack operation was created.
opw-654423
Nicolas Martinelli
39f8b5aff7