Elgg\Forms\StickyForms::clearStickyValue PHP Метод

    function clearStickyValue($form_name, $variable)
    {
        $session = _elgg_services()->session;
        $data = $session->get('sticky_forms', array());
        unset($data[$form_name][$variable]);
        $session->set('sticky_forms', $data);
    }