rebuildCurrentTab example

$response = new AjaxResponse();
      $response->addCommand(new CloseModalDialogCommand());
      $response->addCommand(new ShowButtonsCommand(!empty($view->changed)));
      $response->addCommand(new TriggerPreviewCommand());
      if ($page_title = $form_state->get('page_title')) {
        $response->addCommand(new ReplaceTitleCommand($page_title));
      }
    }
    // If this form was for view-wide changes, there's no need to regenerate     // the display section of the form.     if ($display_id !== '') {
      \Drupal::entityTypeManager()->getFormObject('view', 'edit')->rebuildCurrentTab($view, $response, $display_id);
    }

    return $response;
  }

  /** * Wrapper for handling AJAX forms. * * Wrapper around \Drupal\Core\Form\FormBuilderInterface::buildForm() to * handle some AJAX stuff automatically. * This makes some assumptions about the client. * * @param \Drupal\Core\Form\FormInterface|string $form_class * The value must be one of the following: * - The name of a class that implements \Drupal\Core\Form\FormInterface. * - An instance of a class that implements \Drupal\Core\Form\FormInterface. * @param \Drupal\Core\Form\FormStateInterface $form_state * The current state of the form. * * @return \Drupal\Core\Ajax\AjaxResponse|string|array * Returns one of three possible values: * - A \Drupal\Core\Ajax\AjaxResponse object. * - The rendered form, as a string. * - A render array with the title in #title and the rendered form in the * #markup array. */