With the mailing filter widget, a traceback was raised when unfocussing the domain editor. We now check if the format is correct and return early without raising a traceback. It is also now no longer possible to try to save the unsupported domain in the favorite. task-3569969 closes odoo/odoo#141490 X-original-commit: f2f3b185e9f2d069e3fb3975b20ba2a1002e20ca Signed-off-by: Thibault Delavallee (tde) <tde@openerp.com> Signed-off-by: Jérémy Hennecart (jeh) <jeh@odoo.com>