the search method of contract_renewal_due_soon and
contract_renewal_overdue return a domain
id in res_ids where res_ids are id of contract
not vehicle
So it return random result
Solution
--------
Get the vehicle_id from the contract record set
closesodoo/odoo#84987
X-original-commit: 975841953adaa6b7adc8016fb96cc6efc8891613
Signed-off-by: Kevin Baptiste <kba@odoo.com>