$ git clone -n https://src.fedoraproject.org/rpms/ocserv.git /var/lib/mock/f45-build-20839-574/root/chroot_tmpdir/scmroot/ocserv
Cloning into '/var/lib/mock/f45-build-20839-574/root/chroot_tmpdir/scmroot/ocserv'...
$ git fetch origin 8f04710682ff6aaac90672d75f5a9fe80656a1e7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocserv
 * [new ref]         8f04710682ff6aaac90672d75f5a9fe80656a1e7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8f04710 Recommend nftables for ocserv-fw