$ git clone -n https://src.fedoraproject.org/rpms/plexus-languages.git /var/lib/mock/f40-build-2481560-61633/root/chroot_tmpdir/scmroot/plexus-languages
Cloning into '/var/lib/mock/f40-build-2481560-61633/root/chroot_tmpdir/scmroot/plexus-languages'...
$ git fetch origin 9a27573cb0a0f0dd5f2421449a11c498be5d2947:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/plexus-languages
 * [new ref]         9a27573cb0a0f0dd5f2421449a11c498be5d2947 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9a27573 bump of release for for java-21-openjdk as system jdk