[FIX] ir, ir_attachement: traceback if try to create attachement without res_id, caused by check access rights trying to check if the user had the right to read the object with a res_id  0
[FIX] ir, ir_attachement: traceback if try to create attachement without res_id, caused by check access rights trying to check if the user had the right to read the object with a res_id  0