Pimcore\Model\Element\AbstractElement::unlockPropagate PHP Method

    public function unlockPropagate()
    {
        $type = Service::getType($this);
        $ids = $this->getDao()->unlockPropagate();
        // invalidate cache items
        foreach ($ids as $id) {
            $element = Service::getElementById($type, $id);
            if ($element) {
                $element->clearDependentCache();
            }
        }
    }