bug#7074: 24.0.50; Checking in with C-x v v leaves me with only one window

[martin rudalics]

> Committing changes in a file under version control (using git as the
> backend)-- by typing C-x v v (bound to vc-next-action), entering a
> message, and then typing C-c C-c-- does not return the frame to its
> window configuration before running the command, but instead leaves only
> one window in the frame.

I tried to address this issue in revision 106043.  Please have a look.

Thanks, martin