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.
type ExecutionContext = number;
export const NoContext =  0b000;
const BatchedContext =  0b001;
export const RenderContext =  0b010;
export const CommitContext =  0b100;
type RootExitStatus = 0 | 1 | 2 | 3 | 4 | 5 | 6;
const RootInProgress = 0;
const RootFatalErrored = 1;
const RootErrored = 2;
const RootSuspended = 3;
const RootSuspendedWithDelay = 4;
const RootCompleted = 5;
const RootDidNotComplete = 6;
let executionContext: ExecutionContext = NoContext;
let workInProgressRoot: FiberRoot | null = null;
let workInProgress: Fiber | null = null;
let workInProgressRootRenderLanes: Lanes = NoLanes;
opaque type SuspendedReason = 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8;
const NotSuspended: SuspendedReason = 0;
const SuspendedOnError: SuspendedReason = 1;
const SuspendedOnData: SuspendedReason = 2;
const SuspendedOnImmediate: SuspendedReason = 3;
const SuspendedOnInstance: SuspendedReason = 4;
const SuspendedOnInstanceAndReadyToContinue: SuspendedReason = 5;
const SuspendedOnDeprecatedThrowPromise: SuspendedReason = 6;
const SuspendedAndReadyToContinue: SuspendedReason = 7;
const SuspendedOnHydration: SuspendedReason = 8;
let workInProgressSuspendedReason: SuspendedReason = NotSuspended;
let workInProgressThrownValue: mixed = null;
let workInProgressRootDidAttachPingListener: boolean = false;