GSSAPI not working with GROUP and SID - only username

I have setup MariaDB in Docker and trying to get it to work with GSSAPI. So far I can only get it to work by creating a user with the same username as my Windows user.

A custom Dockerfile is made to install the GSSAPI plugin like so:

FROM mariadb:10-jammy

RUN apt update -y

RUN apt install mariadb-plugin-gssapi-server -y

Otherwise the plugin is missing in the Docker container.

If I create a new user with the same username it works:

CREATE USER MIDU IDENTIFIED VIA gssapi

However trying to use the `AS` option with `SID` or `GROUP` does not work. I'll get an error like this:

GSSAPI name mismatch, requested 'SID:WD', actual name 'MIDU@EXAMPLE.LOCAL'

So it's as if it's not checking the group permissions for the user.

I've been following the guide at https://mariadb.com/kb/en/authentication-plugin-gssapi

And testing have been done both in HeidiSQL and tried creating some demo code with the ODBC driver - both get the same errors.

Creating the everyone user as defined in the original issue (MDEV-23959) does not work either, but I've also tried my own combination of SID of group and group name without luck.
Neither of these work:

CREATE USER MIDU IDENTIFIED VIA gssapi as 'SID:S-1-5-21-3285602104-3108630777-907688344-10270'

CREATE USER MIDU IDENTIFIED VIA gssapi as 'GROUP:Database-MariaDB-Admin'

CREATE USER MIDU IDENTIFIED VIA gssapi as 'GROUP:example.local\\Database-MariaDB-Admin'

Using another username for the MariaDB user doesn't change things either.