Subject: bug#23648: [PATCH] `defun-declarations-alist' can be unintentionally modified

From: Eli Zaretskii <[email-masked]>
Date: Mon, 18 Jul 2016 17:33:27 +0300

> From: [email-masked]
> Date: Sun, 17 Jul 2016 23:00:33 -0400
> Cc: [email-masked]
> 
> I agree with analysis and patch here.  Since this just appends another
> nil, it should be safe for emacs-25, right?

I'm not sure, actually.  How probable is the situation where this
problem pops up?  And when was the bug introduced?