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.
'C',
      'Unmount',
      'Mount',
    ]);
  });
  test('context as node, at the root', async () => {
    const Context = React.createContext(<Text text="Hi" />);
    const root = ReactNoop.createRoot();
    await act(async () => {
      startTransition(() => {
        root.render(Context);
      });
    });
    assertLog(['Hi']);
    expect(root).toMatchRenderedOutput('Hi');
  });
  test('promises that resolves to a context, rendered as a node', async () => {
    const Context = React.createContext(<Text text="Hi" />);
    const promise = Promise.resolve(Context);
    const root = ReactNoop.createRoot();
    await act(async () => {
      startTransition(() => {
        root.render(promise);
      });
    });
    assertLog(['Hi']);
    expect(root).toMatchRenderedOutput('Hi');
  });
});