$ git clone -n https://src.fedoraproject.org/rpms/sil-doulos-fonts.git /var/lib/mock/f39-build-1578128-37990/root/chroot_tmpdir/scmroot/sil-doulos-fonts
Cloning into '/var/lib/mock/f39-build-1578128-37990/root/chroot_tmpdir/scmroot/sil-doulos-fonts'...
$ git fetch origin 5a62f8e0646848182e84cf7afc7762ba9bc8932c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/sil-doulos-fonts
 * [new ref]         5a62f8e0646848182e84cf7afc7762ba9bc8932c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5a62f8e Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild