docs: protected void insertOrUpdate(HistoryEvent historyEvent) {
  
      final DbEntityManager dbEntityManager = getDbEntityManager();
  
      if(isInitialEvent(historyEvent)) {
        dbEntityManager.insert(historyEvent);
      } else {
        if(dbEntityManager.getCachedEntity(historyEvent.getClass(), historyEvent.getId()) == null) {
          if (historyEvent instanceof HistoricScopeInstanceEvent) {
            // if this is a scope, get start time from existing event in DB
            HistoricScopeInstanceEvent existingEvent = (HistoricScopeInstanceEvent) dbEntityManager.selectById(historyEvent.getClass(), historyEvent.getId());
            if(existingEvent != null) {
              HistoricScopeInstanceEvent historicScopeInstanceEvent = (HistoricScopeInstanceEvent) historyEvent;
              historicScopeInstanceEvent.setStartTime(existingEvent.getStartTime());
            }
          }
          if(historyEvent.getId() == null) {
  //          dbSqlSession.insert(historyEvent);
          } else {
            dbEntityManager.merge(historyEvent);
          }
        }
      }
    }