$ git clone -n https://src.fedoraproject.org/rpms/smartmontools.git /var/lib/mock/f42-build-867491-175514/root/chroot_tmpdir/scmroot/smartmontools
Cloning into '/var/lib/mock/f42-build-867491-175514/root/chroot_tmpdir/scmroot/smartmontools'...
$ git fetch origin 68903a28959988039f0825a8262520ff4df441c7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/smartmontools
 * [new ref]         68903a28959988039f0825a8262520ff4df441c7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 68903a2 Rebuilt for the bin-sbin merge (2nd attempt)