Repro: https://codesandbox.io/s/fast-water-4i4jb

Notice the flash. I'd expect `suspended` to be `true` during the high pri render.
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(