src/Component/ContentElement/TabStartElement.php
public function generate(): string
    {
        if ($this->isBackendRequest()) {
            $iterator = $this->getIterator();

            if ($iterator) {
                $iterator->rewind();
            }
        }

        return parent::generate();
    }
public function generate(): string
    {
        if ($this->isBackendRequest()) {
            $iterator = $this->getIterator();

            if ($iterator) {
                $iterator->rewind();
            }
        }

        return parent::generate();
    }
{@inheritdoc}