bug#6454: 24.0.50; kill-buffer switches current-buffer

[martin rudalics <rudalics@gmx.at>]

 > 	(goto-line 1 buffer))

makes sure there's a window showing BUFFER and selects that window.

 >     (kill-buffer buffer)

detects that the window showing BUFFER is the selected window, shows
another buffer in that window, and makes the other buffer current.

Tha according lines in window_loop are:

     Fset_window_buffer (window, buffer, Qnil);
     if (EQ (window, selected_window))
       Fset_buffer (w->buffer);

with the most recent change

1989-10-21  Richard Stallman  (rms@sugar-bombs.ai.mit.edu)

	* window.c (window_loop): For UNSHOW_BUFFER, don't Fset_buffer
	unless window is the selected one.

So this is another incarnation of the "buffer shown in the selected
window is not necessarily the current buffer" dichotomy.  Looks like
a bug but I'm not sure whether fixing it could break other things.

martin