missing cast to make union work

models/intermediate/core/int_core__vr_check_in_cover.sql

@@ -128,9 +128,9 @@ with
         select
             vr.id_verification_request,
             vr.uuid_verification_request,
-            null as id_verification_set,
+            cast(null as bigint) as id_verification_set,
-            null as id_superhog_verified_set,
+            cast(null as bigint) as id_superhog_verified_set,
-            null as id_payment_validation_set,
+            cast(null as bigint) as id_payment_validation_set,
             vr.id_user_guest,
             vr.id_user_host,
             b.id_booking,