https://codesandbox.io/s/upbeat-frost-3tt25

1. Press Suspend, see "Loading..."
2. Wait five seconds, you'll see "Happy birthday" at some point 
3. You won't see it again no matter how long you wait

Expected: you'll see it every five seconds.
workInProgress.expirationTime = Sync;
  } else if (isSuspenseInstanceFallback(suspenseInstance)) {
     
     
     
     
     
     
     
     
     
     
    let serverDisplayTime = requestCurrentTimeForUpdate();
     
    let newExpirationTime = computeAsyncExpiration(serverDisplayTime);
    if (enableSchedulerTracing) {
      markSpawnedWork(newExpirationTime);
    }
    workInProgress.expirationTime = newExpirationTime;
  } else {
     
     
    workInProgress.expirationTime = Never;
    if (enableSchedulerTracing) {
      markSpawnedWork(Never);
    }
  }
  return null;
}
function updateDehydratedSuspenseComponent(