docs: public I_CmsPropertyProvider getPropertyProvider(String key) {
  
          if (key.startsWith(PROPERTY_PREFIX_DYNAMIC)) {
              key = key.substring(PROPERTY_PREFIX_DYNAMIC.length());
          }
          for (I_CmsPropertyProvider provider : m_propertyProviders) {
              if (provider.getName().equals(key)) {
                  return provider;
              }
          }
          return null;
      }