$ git clone -n https://src.fedoraproject.org/rpms/R-scatterplot3d.git /var/lib/mock/f45-build-6410-348/root/chroot_tmpdir/scmroot/R-scatterplot3d
Cloning into '/var/lib/mock/f45-build-6410-348/root/chroot_tmpdir/scmroot/R-scatterplot3d'...
$ git fetch origin 5cab65095b7d35fe7b0ca46ee747d80abb0e459a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-scatterplot3d
 * [new ref]         5cab65095b7d35fe7b0ca46ee747d80abb0e459a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5cab650 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild