$ git clone -n https://src.fedoraproject.org/rpms/R-data.table.git /var/lib/mock/f33-build-156072-43387/root/chroot_tmpdir/scmroot/R-data.table
Cloning into '/var/lib/mock/f33-build-156072-43387/root/chroot_tmpdir/scmroot/R-data.table'...
$ git reset --hard ff286403d5c789363fcdd93f0f57136ef7730462
HEAD is now at ff28640 Merge remote-tracking branch 'origin/master'