Los parámetros username y password salen del query

EventListener/RequestListener.php

@@ -60,8 +60,8 @@ class RequestListener
             // Autologin por GET parameters
             $request = $event->getRequest();
             $authorizationUrl = $this->container->get('hwi_oauth.security.oauth_utils')->getAuthorizationUrl($request, 'login');
-            $username = $request->get('username');
-            $plainPassword = $request->get('password');
+            $username = $request->query->get('username');
+            $plainPassword = $request->query->get('password');
             if ($username && $plainPassword) {
                 $event->setResponse(new RedirectResponse($authorizationUrl . "&username={$username}&password={$plainPassword}"));