$ git clone -n https://src.fedoraproject.org/rpms/plexus-languages.git /var/lib/mock/f40-build-2531804-61830/root/chroot_tmpdir/scmroot/plexus-languages
Cloning into '/var/lib/mock/f40-build-2531804-61830/root/chroot_tmpdir/scmroot/plexus-languages'...
$ git fetch origin 0d51bdd99a2f69c50919414439f42a9d2a1dfcb4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/plexus-languages
 * [new ref]         0d51bdd99a2f69c50919414439f42a9d2a1dfcb4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0d51bdd Rebuilt for java-21-openjdk as system jdk