Fix old tags

app/controllers/admin/tags_controller.rb

@@ -46,12 +46,16 @@ class Admin::TagsController < OrbitBackendController
   
   protected
   
-  def set_module_app
-    @module_app ||= ModuleApp.first(:conditions => {:key => @app_title.underscore}) rescue nil
-  end
-  
   def get_tags
     @tags = (@module_app ?  @module_app.tags : Tag.all)
   end
+
+  def setup_vars
+    @app_key = request.env['HTTP_REFERER'].split('/')[4]
+    if @app_key
+      @app_key.gsub!(/[?].*/, '')
+      @module_app = ModuleApp.first(conditions: {:key => @app_key})
+    end
+  end
   
 end