Hello,

I'm getting this exception:

System.InvalidOperationException was unhandled
  Message=Can not commit a transaction: ValidationContext is in inconsistent state.
  Source=Xtensive.Orm
  StackTrace:
       at Xtensive.Orm.Transaction.CompleteValidation()
       at Xtensive.Orm.Transaction.Commit()
       at Xtensive.Orm.TransactionScope.Dispose()
       at InconsistentState.Model.SessionTrace.TraceOpenedSession(Domain domain, Guid guid, String userId, String ipAddress) 
       at InconsistentState.Program.Main(String[] args)

with this code:

  [HierarchyRoot]
  public class SessionTrace : Entity
  {
    public static void TraceOpenedSession(Domain domain, Guid guid, string userId, string ipAddress)
    {
      using (Session session = domain.OpenSession())
      using (TransactionScope t = session.OpenTransaction())
      {
        SessionTrace sessionTrace = new SessionTrace(session, guid);
        sessionTrace.OpenedDate = DateTime.Now;
        sessionTrace.UserIdentifier = userId;
        sessionTrace.IpAddress = ipAddress;

        t.Complete();
      }
    }

    private SessionTrace(Session session, Guid sessionId)
      : base(session, sessionId)
    {
    }

    [Field, Key]
    public Guid Id { get; private set; }

    [Field]
    public DateTime? OpenedDate { get; set; }

    [Field]
    public string UserIdentifier { get; set; }

    [Field(Length = 50)]
    public string IpAddress { get; set; }

    [Field]
    public DateTime? ClosedDate { get; set; }
  }

Is this a bug? Am I doing something wrong?

DO.Net version: 4.4.2.8482