docs: private boolean hasContentInVfsOrImport(CmsResource resource) {
  
          if (m_contentFiles.contains(resource.getResourceId())) {
              return true;
          }
          try {
              List<CmsResource> resources = getCms().readSiblings(resource, CmsResourceFilter.ALL);
              if (!resources.isEmpty()) {
                  return true;
              }
          } catch (CmsException e) {
              LOG.warn(e.getLocalizedMessage(), e);
          }
          return false;
  
      }