public function buildForm(array $form, FormStateInterface $form_state, $node = NULL) {

    $this->revision = $this->nodeStorage->load($node);
    $form = ConfirmFormBase::buildForm($form, $form_state);

    return $form;
  }
public function buildForm(array $form, FormStateInterface $form_state, $node = NULL) {

    $this->revision = $this->nodeStorage->load($node);
    $form = ConfirmFormBase::buildForm($form, $form_state);

    return $form;
  }
{@inheritdoc}