Fix date

src/BoltFormExtendedExtension.php

@@ -38,7 +38,7 @@ class BoltFormExtendedExtension extends SimpleExtension
         if($event->getFormName() === 'partenaire') {
             $formData = $event->getData();
             $prefix = $this->getConfig()['boltformextended_prefix'];
-            $ident = $prefix.(new DateTime())->format('Ymdhhii');
+            $ident = $prefix.(new \DateTime())->format('YmdHi');
             $formData->set('ident', $ident);
             $event->setData($formData);
         }