Since https://github.com/odoo/odoo/pull/90588, the personal stage is a required field in the task form view in debug mode.
However, we only generate personal stage for a given user when that user is first assigned to a task.
If a user creates their first task and assign it to themselves, they won't be able to give it a personal stage.
To prevent issues linked to the current users not having personal stages, this commit makes the field not required, but prevents the user from unsetting it
closesodoo/odoo#99735
Signed-off-by: Laurent Stukkens (ltu) <ltu@odoo.com>
Vincent Larcin
7f908c6a69