Issue: ------ Since commit 3f145af00307383e2d0a0891d05b8db59b13662a Some events that belong to a recurrence and have been modified are not detected as existing. The `full_recurring_event_id` method blocks these events. Solution: --------- Test regex expressions before using them. opw-3344408 closes odoo/odoo#123333 X-original-commit: f34fa6e905b9426be8040d4e021f1849b3373184 Signed-off-by: Arnaud Joset (arj) <arj@odoo.com> Signed-off-by: Lefebvre Thomas (thle) <thle@odoo.com>