docs: void rollback() {
          if (publishedFullRegistry == null) {
              return;
          }
          writeLock.lock();
          try {
              publishedFullRegistry.readLock.lock();
              try {
                  clear(true);
                  copy(publishedFullRegistry, this);
                  modified = false;
              } finally {
                  publishedFullRegistry.readLock.unlock();
              }
          } finally {
              writeLock.unlock();
          }
      }