code: protected QueryOptions addVariantPrivateExcludeOptions(QueryOptions options) {
          if (options != null) {
              if (options.get("exclude") == null) {
                  options.put("exclude", "_id,_chunkIds,annotation.additionalAttributes");
              } else {
                  String exclude = options.getString("exclude");
                  options.put("exclude", exclude + ",_id,_chunkIds,annotation.additionalAttributes");
              }
          } else {
              options = new QueryOptions("exclude", "_id,_chunkIds,annotation.additionalAttributes");
          }
          return options;
      }
docs: FIXME: collection is updated with the new form of the additionalAttributes field