The bug was reintroduced with 2.1.4 ??
[Sun Jul 15 03:58:05 2012] [error] [client xxx.xxx.192.199] PHP Warning: call_user_func_array() expects parameter 1 to be a valid callback, class ‘advanced_code_editor’ does not have a method ‘add_query_var_vars’ in /var/www/php/xxxxxxxx/wp-includes/plugin.php on line 405
