bug#31312: Segmentation fault with doom-emacs, NeoTree and Zoom

[Eli Zaretskii]

> Date: Wed, 02 May 2018 20:43:30 +0200
> From: martin rudalics <rudalics@gmx.at>
> CC: npostavs@gmail.com, 31312@debbugs.gnu.org, cyrus.and@gmail.com
> 
> (defun foo (frame)
>    (delete-window (selected-window)))
> 
> (add-hook 'window-size-change-functions 'foo)
> 
> and do C-x 2.

Right, and as you can see, selected_window is still a valid leaf
window when we abort in this case.