In this PR we fix the current behavior : When you apply a new driver to a vehicle, all other vehicles having that driver as current driver will have their driver_id set to false, but if we are applying a new driver to a bike, we don't want his car, if he has one to be unassigned from him. task-3463518 closes odoo/odoo#131840 X-original-commit: 7649f45ee45aea152224e4ff0fe9b9430ad3c9f8 Signed-off-by: Sofie Gvaladze (sgv) <sgv@odoo.com>