In a recent fix, the default values generated for datetime fields in custom filter was incorrectly set, as the returned date objects were lost instead of being assigned. This commit restores the intended behavior. closes odoo/odoo#86538 X-original-commit: 2720c5be24a1324c058eaaa0a6a7c627f92e856c Signed-off-by: Aaron Bohy (aab) <aab@odoo.com>