After starting the application, there are 2+ RadPane instances
    Each RadPane contains multiple TextBox controls
    Click on a TextBox in first RadPane
    Switch to the next RadPane
    go back to the first RadPane

The desired behavior is that the focus is restored to the focused element in step 3. Currently no element is focused. The same scenario in RadTabControl is a bit different and the TabControl focused the first element in its TabItem content.