message: fixed an optimization that wasn't an optimization
diff: @@ -1332,7 +1332,7 @@ public:
  }
  size_t col_ndx = path_begin[0];
  size_t row_ndx = path_begin[1];
  - table = std::move(tf::get_subtable_accessor(*table, col_ndx, row_ndx));
  + table = tf::get_subtable_accessor(*table, col_ndx, row_ndx);
  if (!table)
  break;
  path_begin += 2;
  