Client-reported issue with RadListView, request exception to be handled internally.

To reproduce:

Using RadListView' Getting Started example ViewModel and Model, the following will throw NullPointerException when ItemsSource is populated:

<telerikDataControls:RadListView ItemsSource="{Binding Source}" >
            <telerikDataControls:RadListView.ItemTemplate>
                <DataTemplate>
                    <listView:ListViewTemplateCell>
                        <listView:ListViewTemplateCell.View>
                            
                        </listView:ListViewTemplateCell.View>
                    </listView:ListViewTemplateCell>
                </DataTemplate>
            </telerikDataControls:RadListView.ItemTemplate>
</telerikDataControls:RadListView>