Subject: bug#75845: mapconcat crashes for unreasonable self-modifications

From: Eli Zaretskii <[email-masked]>
Date: Sun, 26 Jan 2025 14:16:03 +0200

> Date: Sun, 26 Jan 2025 12:07:50 +0000
> From: Pip Cet <[email-masked]>
> Cc: Eli Zaretskii <[email-masked]>, Mattias Engdegård <[email-masked]>, [email-masked]
> 
> >>   string arg of mapcar or mapconcat clobbered by its mapping function arg
> 
> TBH, "string arg of ... mapconcat" sounds like it's referring to the
> separator string, to me.

If that is a concern, we could say

  First arg of mapcar etc. clobbered ...