$ git clone -n https://src.fedoraproject.org/rpms/open-sans-fonts.git /var/lib/mock/f40-build-2617844-64464/root/chroot_tmpdir/scmroot/open-sans-fonts
Cloning into '/var/lib/mock/f40-build-2617844-64464/root/chroot_tmpdir/scmroot/open-sans-fonts'...
$ git fetch origin 84b81706ce9a14176e99b21899c1591b9720d3e5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/open-sans-fonts
 * [new ref]         84b81706ce9a14176e99b21899c1591b9720d3e5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 84b8170 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild