$ git clone -n https://src.fedoraproject.org/forks/mkoncek/rpms/ongres-scram.git /var/lib/mock/f43-build-61042952-6588094/root/chroot_tmpdir/scmroot/ongres-scram
Cloning into '/var/lib/mock/f43-build-61042952-6588094/root/chroot_tmpdir/scmroot/ongres-scram'...
$ git fetch origin c5cf622b07ea9c0b9ec720c18e3baf8350f56298:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/forks/mkoncek/rpms/ongres-scram
 * [new ref]         c5cf622b07ea9c0b9ec720c18e3baf8350f56298 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c5cf622 Drop -javadoc subpackage