diff --git a/VERSION b/VERSION
index d8b69897..6ceb272e 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-2.12.0
+2.11.1
diff --git a/assets/controllers/common/dirty_form_controller.js b/assets/controllers/common/dirty_form_controller.js
deleted file mode 100644
index aad2e6b0..00000000
--- a/assets/controllers/common/dirty_form_controller.js
+++ /dev/null
@@ -1,274 +0,0 @@
-/*
- * This file is part of Part-DB (https://github.com/Part-DB/Part-DB-symfony).
- *
- * Copyright (C) 2019 - 2025 Jan Böhmer (https://github.com/jbtronics)
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as published
- * by the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program. If not, see