protected function loadMetaAttributes()
    {
        if (!array_key_exists('metaAttributes', $this->relations)) {
            $this->reloadMetaAttributes();
        }

        $attributes = $this->getRelation('metaAttributes');

        if (!$attributes instanceof AttributeBag) {
            $this->setRelation('metaAttributes', (new Attribute)->newBag($attributes->all()));
        }
    }