docs: public String getReturnCode() {
  
          CmsUUID ownId = CmsCoreProvider.get().getStructureId();
          CmsUUID detailId = m_data.getDetailId();
          if (detailId != null) {
              return "" + ownId + ":" + detailId;
          } else {
              return "" + ownId;
          }
      }