Before, each time we created a course "on payment". The product
linked to it was automatically unpublished. If multiple course
share the same product this leads to issues. Indeed, with the
product unpublished all the courses depending on the product are
no longer buyable.
To avoid this, we synchronise the published value when the
course is published which published the product.
If we create a new course or unpublished a previous course linked
to a product, we don't update the published value of the product
unless all courses linked to this product are unpublished.
We also fix a Forbidden error raised when the product was unpublished
but not the course. This was leading to a previous member to not have
access to a course he previously buyed.
task-2842624
Part-of: odoo/odoo#90736
Jérémy Hennecart (jeh)
5881195bfe