> 'temp-buffer-window-show' has a third argument NO-RESIZE and its last
> lines are rewritten as
>
> 	(with-selected-window window
> 	  (run-hooks 'temp-buffer-window-show-hook)
> 	  (when (and (not no-resize) temp-buffer-resize-mode)
> 	    (resize-temp-buffer-window window)))
> 	;; Return the window.
> 	window))))
>
> Maybe Juri can make heads or tails of this.

Does your complete patch look like this?