Subject: bug#73199: url-retrieve is not thread-safe

From: Eli Zaretskii <[email-masked]>
Date: Mon, 30 Sep 2024 20:38:49 +0300

> From: Michael Albinus <[email-masked]>
> Cc: [email-masked],  [email-masked],  [email-masked],
>   [email-masked]
> Date: Mon, 30 Sep 2024 18:42:55 +0200
> 
> Oops, sorry. I've appended the vc-dir buffer, not the vc-diff ...

Thanks.  I'd appreciate if you could explain why url-retrieve is
currently not thread-safe, and how this patch is supposed to solve
that.