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

Notice the flash. I'd expect `suspended` to be `true` during the high pri render.
didNotFindHydratableInstance(
              parentType,
              parentProps,
              parentInstance,
              type,
              props,
            );
            break;
          case HostText:
            const text = fiber.pendingProps;
            didNotFindHydratableTextInstance(
              parentType,
              parentProps,
              parentInstance,
              text,
            );
            break;
          case SuspenseComponent:
            didNotFindHydratableSuspenseInstance(
              parentType,
              parentProps,
              parentInstance,
            );
            break;
        }
        break;
      }
      default:
        return;
    }