Correctif exports pesés

ShopBundle/Repository/OrderShopRepository.php

                 if(isset($params['deliveryDate'])) {
                         $query->andWhere('e.deliveryDate >= :deliveryDateStart');
                         $query->andWhere('e.deliveryDate < :deliveryDateEnd');
-                        $query->setParameter('deliveryDateStart', $params['deliveryDate']->format('Y-m-d 00:00:00'));
-                        $query->setParameter('deliveryDateEnd', $params['deliveryDate']->modify('+1 day')->format('Y-m-d 00:00:00'));
+                        $date = clone $params['deliveryDate'];
+                        $query->setParameter('deliveryDateStart', $date->format('Y-m-d 00:00:00'));
+                        $query->setParameter('deliveryDateEnd', $date->modify('+1 day')->format('Y-m-d 00:00:00'));
                 }
 
                 if (isset($params['mergeComplementaryOrderShops'])) {