Correction CitiesController

ShopBundle/Controller/CitiesController.php

@@ -24,7 +24,7 @@ class CitiesController extends AbstractController
                         'boost' => 'population',
                 ] ;
 
-                if(strlen($term) == 5) {
+                if(strlen($term) == 5 && is_numeric($term)) {
                         $data['codePostal'] = $term ;
                 }
                 else {