Adapted to deprecated null value for content structs (#114)

Author: konradoboza

src/bundle/Controller/UserRegisterController.php

@@ -43,7 +43,11 @@ public function registerAction(Request $request): Response|FormView
         $form = $this->createForm(
             UserRegisterType::class,
             $data,
-            ['languageCode' => $language, 'mainLanguageCode' => $language]
+            [
+                'languageCode' => $language,
+                'mainLanguageCode' => $language,
+                'struct' => $data,
+            ]
         );
 
         $form->handleRequest($request);