$ git clone -n https://src.fedoraproject.org/rpms/aardvark-dns.git /var/lib/mock/f41-build-841613-161227/root/chroot_tmpdir/scmroot/aardvark-dns
Cloning into '/var/lib/mock/f41-build-841613-161227/root/chroot_tmpdir/scmroot/aardvark-dns'...
$ git fetch origin 43998e7c071c16517cc87d11ba752223b2e67611:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/aardvark-dns
 * [new ref]         43998e7c071c16517cc87d11ba752223b2e67611 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 43998e7 bump to v1.12.1