Overrides \Drupal\views_ui\Form\Ajax\ViewsFormBase::validateForm().
Overrides ViewsFormBase::validateForm
public function validateForm(array &$form, array &$form_state) {
$form_state['view']
->get('executable')->displayHandlers
->get($form_state['display_id'])
->validateOptionsForm($form['options'], $form_state);
if (form_get_errors()) {
$form_state['rerender'] = TRUE;
}
}