Failing use case:
Create a vendor bill and use the auto-complete field to select a purchase order multiple times.
The purchase order gets added to the vendor bill multiple times, this doesn't happen in V15 and was never intended.
The reason is simply that the code was checking on self.line_ids which get only populated after the record is saved and its invoice_line_ids are synchronized. Before that, only the field invoice_line_ids is filled witht new_ids.
opw - 3196149
closesodoo/odoo#119758
X-original-commit: 29d5862d447dd369432b345e43d5875d3b2a4474
Signed-off-by: William André (wan) <wan@odoo.com>
qdp-odoo
d563481306