/**
* {@inheritdoc}
*/
protected static function invalidateTagsOnDelete(EntityTypeInterface $entity_type, array $entities)
{
parent::invalidateTagsOnDelete($entity_type, $entities);
// The parent doesn't invalidate the entity cache tags on delete because the
// config system will invalidate them, but since we're using the parent
// page's cache tags, we need to invalidate them special.
$tags = [];
foreach ($entities as $entity) {
$tags = Cache::mergeTags($tags, $entity->getCacheTagsToInvalidate());
}
Cache::invalidateTags($tags);
}
