$ git clone -n https://src.fedoraproject.org/rpms/libreoffice-voikko.git /var/lib/mock/f45-build-16891-493/root/chroot_tmpdir/scmroot/libreoffice-voikko
Cloning into '/var/lib/mock/f45-build-16891-493/root/chroot_tmpdir/scmroot/libreoffice-voikko'...
$ git fetch origin cdf85578be4de28e0eac540c1a29889377a1aff7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libreoffice-voikko
 * [new ref]         cdf85578be4de28e0eac540c1a29889377a1aff7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cdf8557 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild