$ git clone -n https://src.fedoraproject.org/rpms/ganglia.git /var/lib/mock/f41-build-703933-12985/root/chroot_tmpdir/scmroot/ganglia
Cloning into '/var/lib/mock/f41-build-703933-12985/root/chroot_tmpdir/scmroot/ganglia'...
$ git fetch origin 620bef47c680498c9022d29ab591ec58fa583e8f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ganglia
 * [new ref]         620bef47c680498c9022d29ab591ec58fa583e8f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 620bef4 Eliminate use of obsolete %patchN syntax (#2283636)