$ git clone -n https://src.fedoraproject.org/rpms/hunspell-en.git /var/lib/mock/f45-build-13573-453/root/chroot_tmpdir/scmroot/hunspell-en
Cloning into '/var/lib/mock/f45-build-13573-453/root/chroot_tmpdir/scmroot/hunspell-en'...
$ git fetch origin 04c05f872cff094fb5bf16719a49849797f219b8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/hunspell-en
 * [new ref]         04c05f872cff094fb5bf16719a49849797f219b8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 04c05f8 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild