Fix controller trait

Author: alterphp

src/Controller/AdminExtensionControllerTrait.php

@@ -40,6 +40,7 @@ function ($name) use ($hiddenFields) {
         $requestParameters['referer'] = $masterRequestUri;
 
         $viewVars = [
+            'objectType' => 'entity',
             'paginator' => $paginator,
             'fields' => $fields,
             '_request_parameters' => $requestParameters,