$ git clone -n https://src.fedoraproject.org/rpms/hunspell-grc.git /var/lib/mock/f45-build-13608-453/root/chroot_tmpdir/scmroot/hunspell-grc
Cloning into '/var/lib/mock/f45-build-13608-453/root/chroot_tmpdir/scmroot/hunspell-grc'...
$ git fetch origin bb0201b58d8ca6379c76bdce567584b6f54bb1c5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/hunspell-grc
 * [new ref]         bb0201b58d8ca6379c76bdce567584b6f54bb1c5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bb0201b Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild