$ git clone -n https://src.fedoraproject.org/rpms/kclock.git /var/lib/mock/f38-build-side-42-init-devel-654407-26588/root/chroot_tmpdir/scmroot/kclock
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-654407-26588/root/chroot_tmpdir/scmroot/kclock'...
$ git fetch origin b35d76cf63d6444d17f190074b84c9ce1df3aaf2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kclock
 * [new ref]         b35d76cf63d6444d17f190074b84c9ce1df3aaf2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b35d76c Update to 23.01.0