$ git clone -n https://src.fedoraproject.org/rpms/R-data.table.git /var/lib/mock/f33-build-479567-63838/root/chroot_tmpdir/scmroot/R-data.table
Cloning into '/var/lib/mock/f33-build-479567-63838/root/chroot_tmpdir/scmroot/R-data.table'...
$ git reset --hard caf467275dea14b92aedbf4f464273a5d262113f
HEAD is now at caf4672 Update to latest version.