Issue #3284964: Fix Query condition 'group_content_field_data.entity_id IN ()' cannot be empty

   * {@inheritdoc}

   */

  public function revokeGrants(UserInterface $user, array $context): void {

    if (!$user->id()) {

      return;

    }

    // Find the granted groups and roles from the applied grants (context).

    $granted_group_roles = [];

    foreach ($context as $mapping) {