$ git clone -n https://src.fedoraproject.org/rpms/freeipmi.git /var/lib/mock/f40-build-790453-136590/root/chroot_tmpdir/scmroot/freeipmi
Cloning into '/var/lib/mock/f40-build-790453-136590/root/chroot_tmpdir/scmroot/freeipmi'...
$ git fetch origin 6638ecab4670b396a6647980056435e41fd13195:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/freeipmi
 * [new ref]         6638ecab4670b396a6647980056435e41fd13195 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6638eca Update to 1.6.14 (rhbz#2260597)