$ git clone -n https://src.fedoraproject.org/rpms/traceroute.git /var/lib/mock/f41-build-852707-166448/root/chroot_tmpdir/scmroot/traceroute
Cloning into '/var/lib/mock/f41-build-852707-166448/root/chroot_tmpdir/scmroot/traceroute'...
$ git fetch origin d6d0785732cf6e39d817e831e254248d45f3601a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/traceroute
 * [new ref]         d6d0785732cf6e39d817e831e254248d45f3601a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d6d0785 Update to 2.1.6