[FIX] product: Searching prodcut on internal ref when archived

Steps to reproduce the bug:

- Let's consider a product template P with an internal reference = I
- Archive P
- In the list view of product template select the Archived filter and
search for I with the Product filter

Bug:

P was not found.

opw:2169441

closes odoo/odoo#43414

X-original-commit: 051e8581
Signed-off-by: Simon Goffin (sig) <sig@openerp.com>