$ git clone -n https://src.fedoraproject.org/rpms/cinnamon.git /var/lib/mock/f41-build-875127-16267/root/chroot_tmpdir/scmroot/cinnamon
Cloning into '/var/lib/mock/f41-build-875127-16267/root/chroot_tmpdir/scmroot/cinnamon'...
$ git fetch origin c1520972fb615438d730a46e96aec235c39ef62f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cinnamon
 * [new ref]         c1520972fb615438d730a46e96aec235c39ef62f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c152097 Update panel defaults