docs: public I_CmsHistoryResource readResource(CmsRequestContext context, CmsResource resource, int version)
      throws CmsException {
  
          CmsDbContext dbc = m_dbContextFactory.getDbContext(context);
          I_CmsHistoryResource result = null;
          try {
              result = m_driverManager.readResource(dbc, resource, version);
          } catch (CmsException e) {
              dbc.report(
                  null,
                  Messages.get().container(
                      Messages.ERR_READING_RESOURCE_VERSION_2,
                      dbc.removeSiteRoot(resource.getRootPath()),
                      new Integer(version)),
                  e);
          } finally {
              dbc.clear();
          }
          return result;
      }