When adding a new record in the XamDataGrid I use the following to initialize the added record

private void NotesViewGrid_InitializeTemplateAddRecord(object sender, Infragistics.Windows.DataPresenter.Events.InitializeTemplateAddRecordEventArgs e)
        {
             e.TemplateAddRecord.SetCellValue(e.TemplateAddRecord.FieldLayout.Fields[0], notesViewModel.GetDefaultNote().Priority);
             e.TemplateAddRecord.SetCellValue(e.TemplateAddRecord.FieldLayout.Fields[2], notesViewModel.GetDefaultNote().Reviewer);
             e.TemplateAddRecord.SetCellValue(e.TemplateAddRecord.FieldLayout.Fields[3], notesViewModel.GetDefaultNote().Updated);
        }

When the record is displayed the values are correctly initialized and displayed. However as soon as the user edits a value in a cell of the added row all the other cells loose their default value.

This occurs after the NotesViewGrid_EditModeStarted event as soon as the user enters a value in the cell. A new DataItem gets created on cell edit wiping out all the initialized values. How does one prevent this from happening?