bug#25380: 25.1; save-window-excursion problem in batch mode

[Glenn Morris]

Philipp Stephani wrote:

> Apparently, restoring a window configuration doesn't result in the same
> window configuration in batch mode:
>
> $ emacs -Q -batch -eval '(print (equal (save-window-excursion 
> (current-window-configuration)) (current-window-configuration)))'
>
> nil

It works in 24.5 and earlier. Something to do with window-edges?

emacs -Q -batch --eval '(progn (setq c (current-window-configuration))
(print (window-edges))
(set-window-configuration c)
(print (window-edges)))'

24.5:
(0 1 10 9)
(0 1 10 9)

25.1:
(0 0 10 9)
(0 1 10 10)