$ git clone -n https://src.fedoraproject.org/rpms/kclock.git /var/lib/mock/f45-build-14618-462/root/chroot_tmpdir/scmroot/kclock
Cloning into '/var/lib/mock/f45-build-14618-462/root/chroot_tmpdir/scmroot/kclock'...
$ git fetch origin 317466616aaf9e41f87b8defdeac783d363c3244:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kclock
 * [new ref]         317466616aaf9e41f87b8defdeac783d363c3244 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3174666 26.08.1