bug#13361: 24.2.91; [regression] window point incompatible change

[Leo Liu]

I have just spent this morning trying to fix a 3rd party library
behaviour change only to find this annoying regression.

To reproduce

0. emacs -q
1. Create two buffers A and B and make them both visible in the frame
2. Insert some text in A and leave point at the end of buffer A
3. Switch to buffer B and eval
    
      (with-current-buffer "A" (goto-char (point-min)))

You will see point in buffer A doesn't change.

Leo