bug#49711: 27.2; Deleting a directory called ~ deletes home directory

[Eli Zaretskii]

> From: Lars Ingebrigtsen <larsi@gnus.org>
> Date: Sat, 24 Jul 2021 13:37:49 +0200
> Cc: 49711@debbugs.gnu.org
> 
> Al Haji-Ali <abdo.haji.ali@gmail.com> writes:
> 
> > Apologies, I should have specified that I have
> > `delete-by-moving-to-trash` set to `t`.
> > Otherwise, the exact steps you mentioned reproduce this for me on 27.2
> 
> Ah, yes, with that setting I can reproduce the problem.  This is now
> fixed in Emacs 28.

Hmm... you replaced expand-file-name with directory-append, but what
if there's a real "~" in the arguments, or some ".." etc. stuff?  That
would now wind up in the trash info, no?

Wouldn't it be better to quote "~" when it's a literal file name?