public function postFilterQuery($query)
    {
        // @TODO: Is this still right?
        global $pagenow;

        $vars = &$query->query_vars;

        if ($pagenow == 'edit.php' && isset($vars[$this->name]) && is_numeric($vars[$this->name]) && $vars[$this->name]) {
            $term = get_term_by('id', $vars[$this->name], $this->name);

            $vars[$this->name] = $term->slug;
        }

        return $vars;
    }