anchor.diff:  add_arg_to_action(Arg, {postback, [{postback, {Action, ArgList}} | Rest]}) ->
       {postback, [{postback, {Action, [Arg | ArgList]}} | Rest]};
   add_arg_to_action(_A, B) ->
  -    B.+    B.
  
positive.code: %% @copyright 2009 Marc Worrell
  %% Date: 2009-04-27
  %% @doc Open a dialog with some fields to upload a new media.
  %% Temporary overwrite to handle contentgroup inheritance
  %% Will be fixed in 0.13.5 - remove after 0.13.5 on production
  
  
  -module(action_ginger_dialog_media_upload).
  -author("Marc Worrell <marc@worrell.nl").
  
negative.code: add_content_group(EventProps, Props, Context) ->
      case proplists:get_value(subject_id, EventProps) of
          undefined ->
              [ {content_group_id, proplists:get_value(content_group_id, EventProps)} | Props ];
          SubjectId when is_integer(SubjectId) ->
              ContentGroupdId = case proplists:get_value(content_group_id, EventProps) of
                                      undefined -> m_rsc:p_no_acl(SubjectId, content_group_id, Context);
  