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.
new Error(
          'There was an error while hydrating this Suspense  ' +
            'Switched to client rendering.',
        ),
      );
      return retrySuspenseComponentWithoutHydrating(
        current,
        workInProgress,
        renderLanes,
        capturedValue,
      );
    } else if ((workInProgress.memoizedState: null | SuspenseState) !== null) {
       S
       L
       P
      pushFallbackTreeSuspenseHandler(workInProgress);
      workInProgress.child = current.child;
       T
       b
      workInProgress.flags |= DidCapture;
      return null;
    } else {
       S
       T
      pushFallbackTreeSuspenseHandler(workInProgress);
      const nextPrimaryChildren = nextProps.children;
      const nextFallbackChildren = nextProps.fallback;
      const fallbackChildFragment =
        mountSuspenseFallbackAfterRetryWithoutHydrating(
          current,