No borra warehouse de zone

db/changes/10100-AllSaints/00-zone.sql

@@ -35,9 +35,13 @@ CREATE TABLE `vn`.`zoneExclusion` (
   KEY `zoneFk` (`zoneFk`),
   CONSTRAINT `zoneExclusion_ibfk_1` FOREIGN KEY (`zoneFk`) REFERENCES `zone` (`id`) ON DELETE CASCADE ON UPDATE CASCADE
 ) ENGINE=InnoDB AUTO_INCREMENT=5 DEFAULT CHARSET=utf8;
-
 ALTER TABLE `vn`.`zone` 
-  DROP FOREIGN KEY `fk_zone_1`;
+DROP FOREIGN KEY `fk_zone_1`;
 ALTER TABLE `vn`.`zone` 
-  DROP COLUMN `warehouseFk`,
-  DROP INDEX `fk_zone_1_idx`;
+CHANGE COLUMN `warehouseFk` `warehouseFk` SMALLINT(6) UNSIGNED NULL DEFAULT NULL ;
+ALTER TABLE `vn`.`zone` 
+ADD CONSTRAINT `fk_zone_1`
+  FOREIGN KEY (`warehouseFk`)
+  REFERENCES `vn`.`warehouse` (`id`)
+  ON DELETE NO ACTION
+  ON UPDATE CASCADE;