bug#81530: Problems with both replace-match and substring

[please remember to reply-all so the bug tracker is CCed]

Sean MacLennan [12/Aug  9:53pm -04] wrote:
> On Mon, 03 Aug 2026 17:06:59 +0100
> Sean Whitton <[email protected]> wrote:
>
>> What is the claimed bug?
>
> If I run both functions in a standalone fashion they work.
>
> For example:
>
> (pretty-print-fname "/home/nobody/src/" "/home/nobody/src/file.c")
> "file.c"
>
> But when I run them as part of a larger program, then never work. So
> the problem is, the function is pretty trivial, why doesn't it work in
> all contexts.

I mean, what is the claimed bug in upstream Emacs?

-- 
Sean Whitton