public function handleRemovePage(RemoveEvent $event)
    {
        $document = $event->getDocument();
        if (!$document instanceof ArticlePageDocument) {
            return;
        }

        $document = $document->getParent();
        $this->documents[$document->getUuid()] = [
            'uuid' => $document->getUuid(),
            'locale' => $document->getLocale(),
        ];
    }