$ git clone -n https://src.fedoraproject.org/rpms/rcssserver.git /var/lib/mock/f41-build-side-1-2675090-29292/root/chroot_tmpdir/scmroot/rcssserver
Cloning into '/var/lib/mock/f41-build-side-1-2675090-29292/root/chroot_tmpdir/scmroot/rcssserver'...
$ git fetch origin d8dddf3017fdff9d77c15be1f7a5526a6510c02d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rcssserver
 * [new ref]         d8dddf3017fdff9d77c15be1f7a5526a6510c02d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d8dddf3 convert license to SPDX