Issue #3319709: Avoid logging the same entity operations twice

 * Callback for calling a core event.

 */

function _log_entity_event($event_type, $entity) {

  if (!empty($entity->__elogger_logged)) {

    // Certain entities may be called twice within the same form operation.

    // e.g. Blocks or node_form. Block it here.

    return;

  }

  $entity->__elogger_logged = TRUE;

  $elog_service = \Drupal::service('elogger.logger');

  $elog_service->setEntity($entity);

  $elog_service->logEvent($event_type);