With this commit, Selection fields with `required=True` which are
extended via `selection_add` are given proper ondelete policies to
ensure the cleanup of records containing these extended options during
uninstall of the extending module.
This commit also cleans up leftover uninstall hooks that were being used
to handle the same set of problems prior to the ondelete mechanism being
implemented for Selection fields.
closesodoo/odoo#46325
Related: odoo/enterprise#9117
Signed-off-by: Raphael Collet (rco) <rco@openerp.com>
The recently introduced `activity` view (see rev. odoo/odoo@1de9496 has not
received all the consideration it deserves as a real view type (no RNG, not in
the valid view `type`, no doc, etc.). It was currently only working based on a
`_get_default_activity_view` method.
Even if the RNG is currently really basic, its grammar could evolve in the future.
This was causing an issue when opening Studio with this view as a default view
with an invalid type was created.