Correctif erreur à la génération de bon cadeau

Builder/Order/OrderShopBuilder.php

@@ -438,7 +438,7 @@ class OrderShopBuilder
         $documentFactory = new DocumentFactory();
 
         $document = $documentFactory->create($orderShop->getSection()->getMerchant(), DocumentModel::TYPE_INVOICE);
-
+        $document->setTitle($orderShop->__toString());
         $this->documentBuilder->initFromOrderShop($document, $orderShop);
         return $document;
     }