Steps to reproduce the bug: - Create vehicle A - Create a contract for vehicle A - Change the license plate of vehicle A Bug: The name of the contract of vehicle A hasn't changed opw:2327820 closes odoo/odoo#57251 X-original-commit: 5a031de6c456180b0f447470382e1ae1c7dbd5dc Signed-off-by: Simon Goffin (sig) <sig@openerp.com> Signed-off-by: backspac <backspac@users.noreply.github.com>