$ git clone -n https://src.fedoraproject.org/rpms/plexus-languages.git /var/lib/mock/f45-build-53667-928/root/chroot_tmpdir/scmroot/plexus-languages
Cloning into '/var/lib/mock/f45-build-53667-928/root/chroot_tmpdir/scmroot/plexus-languages'...
$ git fetch origin 285ccd218a6a8843cfc847c26bd87a9a4c9d0e4d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/plexus-languages
 * [new ref]         285ccd218a6a8843cfc847c26bd87a9a4c9d0e4d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 285ccd2 Update to upstream version 1.5.2