ToggleScreenMode - unable to restore the Editor while the EditorToolGroup.DockingZone is Right

HI

When EditorToolGroup.DockingZone is Right then the ToggleScreenMode have a problem - unable to restore the Editor.

Editor - Docking Zones
http://demos.telerik.com/aspnet-ajax/editor/examples/dockingzone/defaultcs.aspx

In online demo 'Editor - Docking Zones' as above, 
the ToggleScreenMode's EditorToolGroup.DockingZone is Right,
When I press the ToggleScreenMode button then the Editor was full-screened,
But there have no method restore the Editor to non-full-screen mode.

Best regards

Chris