Steps to reproduce:
- Install the elearning module and go to a course not created by you.
- Try to delete or add any slide.
Note: the bug is not consistent it might happen for some courses and not
for others.
Issue: We get a traceback error when trying to modify anything about the
slides in this course.
Solution:
Adding the `'channel_id.slide_ids.slide_ids'` dependece to the
`_compute_category_id` will make the computation to take into account
the changes on the slides.
opw-3316697
closesodoo/odoo#128022
X-original-commit: 1d6f8f4c606ddb7f57acd7ef2a9f983d7de84a34
Signed-off-by: Thibault Delavallee (tde) <tde@openerp.com>