$ git clone -n https://src.fedoraproject.org/rpms/endless-sky.git /var/lib/mock/f42-build-side-1-3582677-46886/root/chroot_tmpdir/scmroot/endless-sky
Cloning into '/var/lib/mock/f42-build-side-1-3582677-46886/root/chroot_tmpdir/scmroot/endless-sky'...
$ git fetch origin b370f5493d31596415c54f41d1dd392637c2ec9e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/endless-sky
 * [new ref]         b370f5493d31596415c54f41d1dd392637c2ec9e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b370f54 0.10.14