[FIX] Sale: Resolve Traceback in Product Packaging and Display Packages as per Product Template in Quotations.

- Task: https://www.odoo.com/web#id=9032&view_type=form&model=project.task&action=333&active_id=131
- Pad: https://pad.odoo.com/p/r.rhzpCFUKeLqwoBGr
Please remove this change to lessen the diff.