$ git clone -n https://src.fedoraproject.org/rpms/heat-cfntools.git /var/lib/mock/f40-build-2254521-54230/root/chroot_tmpdir/scmroot/heat-cfntools
Cloning into '/var/lib/mock/f40-build-2254521-54230/root/chroot_tmpdir/scmroot/heat-cfntools'...
$ git fetch origin 85b1edd6f7e45a6c1facfcf0c92c9d6ef6cacedd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/heat-cfntools
 * [new ref]         85b1edd6f7e45a6c1facfcf0c92c9d6ef6cacedd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 85b1edd Orphaned for 6+ weeks