Indeed, this does not work today, but we must fix it. I just filed an error: http://nuget.codeplex.com/workitem/591
As a workaround, if you really want to use a clean keyboard shortcut, you can do Ctrl-S, W, Escape. Basically, go into the solution explorer and then run away from there. I know a lot of keystrokes, just a workaround :)
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