Same as https://github.com/facebook/react/issues/10103, but for the server renderer. You can look at implementation in https://github.com/facebook/react/pull/11168 and do something very similar in `ReactPartialRenderer.js`.
current,
    workInProgress,
    nextChildren,
    renderExpirationTime,
  ) {
    if (current === null) {
      
      
      
      
      workInProgress.child = mountChildFibers(
        workInProgress,
        null,
        nextChildren,
        renderExpirationTime,
      );
    } else {
      
      
      
      
      
      workInProgress.child = reconcileChildFibers(