title: WPF Freezable Warning on a plain ComboBox
body: <p>I'm recieving the following message:</p>
  
  <p><code>System.Windows.Freezable Warning: 4 : CanFreeze is returning false because at least one DependencyProperty on the Freezable is animated.; Freezable='System.Windows.Media.TranslateTransform'; Freezable.HashCode='65850542'; Freezable.Type='System.Windows.Media.TranslateTransform'</code></p>
  
  <p>On my plain, unstyled ComboBoxes i.e.:</p>
  
  <pre><code>&lt;ComboBox Grid.Row="0"
      Grid.Column="1"
      ItemsSource="{Binding Path=LookupUnits}"
      DisplayMemberPath="Name"
      SelectedItem="{Binding Path=SelectedUnit}"&gt;
      &lt;ComboBox.InputBindings&gt;
          &lt;KeyBinding Key="Delete"
          Command="{Binding Path=ClearComboBoxCommand}"
          CommandParameter="LookupUnit" /&gt;
      &lt;/ComboBox.InputBindings&gt;
   &lt;/ComboBox&gt;
  </code></pre>
  
  <p>I've removed all the styles, from the resource dictionaries etc, so I'm not sure why its appearing.  It only appears when your first drop down the list and when you click on one of the items in the list.</p>
  
  <p>This on a WPF .NET 4 app.</p>