Get NULL in contextual default argument

I temporarily fixed in my project defining my custom plugin class

class AutocompleteFiltersString extends ViewsAutocompleteFiltersString {

  /**
   * {@inheritdoc}
   */
  public function valueForm(&$form, FormStateInterface $form_state): void {
    if (
      empty(array_filter($this->view->args))
      && isset($this->view->argument['store_id'])
    ) {
      $this->view->args = [(int) $this->view->argument['store_id']->getValue()];
    }

    parent::valueForm($form, $form_state);
  }

}