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

Notice the flash. I'd expect `suspended` to be `true` during the high pri render.
current: Fiber,
  workInProgress: Fiber,
  suspenseInstance: SuspenseInstance,
  suspenseState: SuspenseState,
  renderExpirationTime: ExpirationTime,
): null | Fiber {
   
   
  warnIfHydrating();
  if ((workInProgress.mode & BlockingMode) === NoMode) {
    return retrySuspenseComponentWithoutHydrating(
      current,
      workInProgress,
      renderExpirationTime,
    );
  }
  if (isSuspenseInstanceFallback(suspenseInstance)) {