Agregado del orden de los valores del filtro

src/FTTHBundle/EventListener/ClientFilterListListener.php

@@ -45,13 +45,14 @@ class ClientFilterListListener
     public function configureDatagridFilters(ConfigureEvent $event)
     {
         if ($event->getMapper()->has('clientId')) {
+            $order = $event->getMapper()->keys();
             $event->getMapper()->remove('clientId');
             $event->getMapper()
                 ->add('clientId', CallbackFilter::class,
                     array(
                         'callback' => array($this, 'getClientFilter'),
                         'field_type' => 'text'));
-
+            $event->getMapper()->reorder($order);
         }
     }