This DEV-only field was added in 836331ba5f69f2cc53b273ec073fae116db14302 by @sebmarkbage but it's not being used anymore to my knowledge.
}
    suspenseContext = setDefaultShallowSuspenseContext(suspenseContext);
  }
  pushSuspenseContext(workInProgress, suspenseContext);
  if ((workInProgress.mode & ConcurrentMode) === NoMode) {
    
    
    workInProgress.memoizedState = null;
  } else {
    switch (revealOrder) {
      case 'forwards': {
        const lastContentRow = findLastContentRow(workInProgress.child);
        let tail;
        if (lastContentRow === null) {
          
          
          tail = workInProgress.child;
          workInProgress.child = null;
        } else {
          
          
          tail = lastContentRow.sibling;
          lastContentRow.sibling = null;
        }
        initSuspenseListRenderState(
          workInProgress,
          false, 
          tail,
          lastContentRow,
          tailMode,