bug#28862: Emacs 25.3.1 segmentation fault on killing *Colors* buffer

[Levi]

Yes, all the tests (except for the one mentioned where I used my own config) were using `emacs -Q`. Attempting to remove the `window-list` call, resulted in the following code:

(add-hook 'delete-frame-functions
          (lambda (frame)
            (kill-buffer "*Colors*")))

-- which did not prevent Emacs 26.0.90 from crashing if the given steps were used.

Have you (or anyone else) been able to reproduce the issue? If not, I can start looking at other potential factors on my system.