$ git clone -n https://src.fedoraproject.org/rpms/cjdns.git /var/lib/mock/f41-build-side-1-3132405-39648/root/chroot_tmpdir/scmroot/cjdns
Cloning into '/var/lib/mock/f41-build-side-1-3132405-39648/root/chroot_tmpdir/scmroot/cjdns'...
$ git fetch origin b4e4f1f6f72f7ec123cdc2d9a327d77aa99b3625:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cjdns
 * [new ref]         b4e4f1f6f72f7ec123cdc2d9a327d77aa99b3625 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b4e4f1f Bodhi does not like patches included but not applied.