Sandbox: https://codesandbox.io/s/cranky-kapitsa-op3jh

Repro: type "a" and then after a second "b"

Expected: Eventually you'll see "ab" in all fields. Pending "..." indicator goes away.

Actual: You'll keep seeing "a" in low pri field. Pending "..." indicator is stuck.
import {
  NoEffect as NoHookEffect,
  HasEffect as HookHasEffect,
  Layout as HookLayout,
  Passive as HookPassive,
} from './ReactHookEffectTags';
import {
  getWorkInProgressRoot,
  scheduleUpdateOnFiber,
  computeExpirationForFiber,
  requestCurrentTimeForUpdate,
  warnIfNotCurrentlyActingEffectsInDEV,
  warnIfNotCurrentlyActingUpdatesInDev,
  warnIfNotScopedWithMatchingAct,
  markRenderEventTimeAndConfig,
  markUnprocessedUpdateTime,
} from './ReactFiberWorkLoop';
import {
  registerEvent,
  mountEventListener as mountHostEventListener,
  unmountEventListener as unmountHostEventListener,
  validateEventListenerTarget,
} from './ReactFiberHostConfig';
import invariant from 'shared/invariant';
import getComponentName from 'shared/getComponentName';
import is from 'shared/objectIs';
import {markWorkInProgressReceivedUpdate} from './ReactFiberBeginWork';
import {requestCurrentSuspenseConfig} from './ReactFiberSuspenseConfig';
import {
  UserBlockingPriority,