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.
useReducer: updateReducer,
  useRef: updateRef,
  useState: updateState,
  useDebugValue: updateDebugValue,
  useResponder: createDeprecatedResponderListener,
  useDeferredValue: updateDeferredValue,
  useTransition: updateTransition,
  useMutableSource: updateMutableSource,
  useEvent: updateEventListener,
  useOpaqueIdentifier: updateOpaqueIdentifier,
};
const HooksDispatcherOnRerender: Dispatcher = {
  readContext,
  useCallback: updateCallback,
  useContext: readContext,
  useEffect: updateEffect,
  useImperativeHandle: updateImperativeHandle,
  useLayoutEffect: updateLayoutEffect,
  useMemo: updateMemo,
  useReducer: rerenderReducer,
  useRef: updateRef,
  useState: rerenderState,
  useDebugValue: updateDebugValue,
  useResponder: createDeprecatedResponderListener,
  useDeferredValue: rerenderDeferredValue,
  useTransition: rerenderTransition,
  useMutableSource: updateMutableSource,
  useEvent: updateEventListener,
  useOpaqueIdentifier: rerenderOpaqueIdentifier,
};