$ git clone -n https://src.fedoraproject.org/rpms/cvs.git /var/lib/mock/f39-build-1591362-38283/root/chroot_tmpdir/scmroot/cvs
Cloning into '/var/lib/mock/f39-build-1591362-38283/root/chroot_tmpdir/scmroot/cvs'...
$ git fetch origin d5c4dfaf8637d73bd52bfda189988505399beafc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cvs
 * [new ref]         d5c4dfaf8637d73bd52bfda189988505399beafc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d5c4dfa Convert License tags to an SPDX format