$ git clone -n https://src.fedoraproject.org/rpms/hunspell-fj.git /var/lib/mock/f45-build-13588-453/root/chroot_tmpdir/scmroot/hunspell-fj
Cloning into '/var/lib/mock/f45-build-13588-453/root/chroot_tmpdir/scmroot/hunspell-fj'...
$ git fetch origin 285e7496502ea8349e907dfff155954691c3bdd1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/hunspell-fj
 * [new ref]         285e7496502ea8349e907dfff155954691c3bdd1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 285e749 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild