$ git clone -n https://src.fedoraproject.org/rpms/plexus-utils.git /var/lib/mock/f40-build-2554932-62020/root/chroot_tmpdir/scmroot/plexus-utils
Cloning into '/var/lib/mock/f40-build-2554932-62020/root/chroot_tmpdir/scmroot/plexus-utils'...
$ git fetch origin 2a7b9f58baffd6aec0a5f7d59189b4698b5a1cf4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/plexus-utils
 * [new ref]         2a7b9f58baffd6aec0a5f7d59189b4698b5a1cf4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2a7b9f5 Rebuilt for java-21-openjdk as system jdk