React version: 18.3.0-next-3ba7add60-20221201

Hard to reproduce.

In Next.js, in rare cases, and only after a fast refresh, the ref object when using forwardRef is simply `{}`.

This leads to the `TypeError: can't define property "current": Object is not extensible` error when used with `useImperativeHandle`.

```tsx
function Parent() {
  const carouselRef = useRef<any>();

  return <Suspense><Carousel ref={carouselRef} /></Suspense>
}

const Carousel = forwardRef((props, ref) => {
  if (!('current' in ref)) { debugger; }
  const thing = use(aPromise);
  return ...;
});
```

![Screenshot 2023-03-17 at 18 49 21](https://user-images.githubusercontent.com/5406212/225981809-22f575fa-0ec7-4f94-ae23-bffc8bf7c4dd.png)

In `updateImperativeHandle`, the ref is already an empty object.

![Screenshot 2023-03-17 at 19 13 13](https://user-images.githubusercontent.com/5406212/225985622-b8512a61-3a6b-4958-b63f-277219d4c816.png)

I haven't investigated it further yet, the stacktraces are quite hard to follow.
NoFlags;
  const rootHasEffect =
    (finishedWork.flags &
      (BeforeMutationMask | MutationMask | LayoutMask | PassiveMask)) !==
    NoFlags;
  if (subtreeHasEffects || rootHasEffect) {
    const prevTransition = ReactCurrentBatchConfig.transition;
    ReactCurrentBatchConfig.transition = null;
    const previousPriority = getCurrentUpdatePriority();
    setCurrentUpdatePriority(DiscreteEventPriority);
    const prevExecutionContext = executionContext;
    executionContext |= CommitContext;
     R
    ReactCurrentOwner.current = null;
     T
     o
     l
     T
     s
     g
    const shouldFireAfterActiveInstanceBlur = commitBeforeMutationEffects(
      root,
      finishedWork,
    );
    if (enableProfilerTimer) {
       M
       b
      recordCommitTime();
    }
    if (enableProfilerTimer && enableProfilerNestedUpdateScheduledHook) {