$ git clone -n https://src.fedoraproject.org/rpms/golang-github-google-flatbuffers.git /var/lib/mock/f40-build-2239193-53604/root/chroot_tmpdir/scmroot/golang-github-google-flatbuffers
Cloning into '/var/lib/mock/f40-build-2239193-53604/root/chroot_tmpdir/scmroot/golang-github-google-flatbuffers'...
$ git fetch origin ef206a4378c7ef10f651a3db9f2384c141eff721:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-google-flatbuffers
 * [new ref]         ef206a4378c7ef10f651a3db9f2384c141eff721 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ef206a4 Use SPDX license nomenclature