$ git clone -n https://src.fedoraproject.org/rpms/hfsutils.git /var/lib/mock/f42-build-867442-175505/root/chroot_tmpdir/scmroot/hfsutils
Cloning into '/var/lib/mock/f42-build-867442-175505/root/chroot_tmpdir/scmroot/hfsutils'...
$ git fetch origin f5503e64991f68a79f84cb19888938e2ff5f6699:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/hfsutils
 * [new ref]         f5503e64991f68a79f84cb19888938e2ff5f6699 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f5503e6 Rebuilt for the bin-sbin merge (2nd attempt)