Current query does not produce the wanted join i.e.
LEFT JOIN a2_rbac_role_members ON (a2_rbac_role_members.role_id = a2_rbac_role.id AND a2_rbac_role_members.user_id = <self.id>)
So instead of testing that "a2_rbac_role_members IS NOT NULL" since we
cannot get the join we want, we make a prefetch_related() request on the
members relation restricting it to the current user only.
- separate user's roles management in a specific view
- improve form display everywhere
- add a reset on next login checkbox to the user add form
fixes #7339
Benjamin Dauvergne
Nicolas Roche
Frédéric Péters
Valentin Deniaud