I am trying to bind a XamTextEditor to a Column in a DataRow. The binding works fine until I click on the textbox. Once it receives focus it marks the underlying DataRow as changed. You can see this in action by running the sample I have provided below. Changing to a MS textbox changes the behavior to what I would expect. Are there any workarounds to this?

Xaml:
<Window x:Class="Penta.Test.Window1"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:igEditors="http://infragistics.com/Editors"
        Title="Window1"
        Height="300"
        Width="300">
  <StackPanel>
    <igEditors:XamTextEditor Text="{Binding Path=TestColumn}"/>
    <!--<TextBox Text="{Binding Path=TestColumn}" />-->
    <Button Click="Button_Click">Click Me</Button>
  </StackPanel>
</Window>

C#:
public partial class Window1 : Window
  {
    private DataSet _dataSet;
    public Window1()
    {
      InitializeComponent();
   
      _dataSet = new DataSet();
      DataTable dataTable = _dataSet.Tables.Add("Test");
      DataColumn testColumn = dataTable.Columns.Add("TestColumn", typeof(String));
     
      DataRow dataRow = dataTable.NewRow();
      dataRow[testColumn] = "Value";
      dataTable.Rows.Add(dataRow);
      _dataSet.AcceptChanges();

      this.DataContext = dataTable.DefaultView[0];

      dataTable.ColumnChanged += new DataColumnChangeEventHandler(dataTable_ColumnChanged);
    }

    void dataTable_ColumnChanged(object sender, DataColumnChangeEventArgs e)
    {
      MessageBox.Show("I am changing now");
    }

    private void Button_Click(object sender, RoutedEventArgs e)
    {
      MessageBox.Show(_dataSet.HasChanges().ToString());
    } 
  }