bug#81406: 31.0.90; rotate-windows loses window balance when window-combination-resize is t

 > I don't think I mind, but does this mean a dedicated window can change
 > the buffer it displays?

No.  The buffer stays in its window but the window changes its position
in the frame like all the other windows.  Incidentally, without the
patch a window could change its buffer as my earlier example has shown.

 > If so, I think this should at least be
 > mentioned in the documentation, to avoid people submitting bugs about
 > this.

martin