Just try the command I provided. If it gives the expected result with new
Emacs, then the bug is fixed.

Paul

On Fri, 1 Apr 2022 at 02:38, Michael Heerdegen <michael_heerdegen@web.de>
wrote:

> Michael Heerdegen <michael_heerdegen@web.de> writes:
>
> > I think this has been fixed - see Bug#11309, and especially this commit:
> >
> > beebd2a85e Recognise ß properly as a lower-case letter (bug#11309)
> > Mattias Engdegård <mattiase@acm.org> Wed Dec 9 13:27:16 2020 +0100
>
> Paul, any chance you can try again with a newer Emacs?
>
> TIA,
>
> Michael.
>