$ git clone -n https://src.fedoraproject.org/rpms/dnsmap.git /var/lib/mock/f40-build-762052-121824/root/chroot_tmpdir/scmroot/dnsmap
Cloning into '/var/lib/mock/f40-build-762052-121824/root/chroot_tmpdir/scmroot/dnsmap'...
$ git fetch origin d061aed21217164d49574d34b1b48244119a37b3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dnsmap
 * [new ref]         d061aed21217164d49574d34b1b48244119a37b3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d061aed adding automate build req