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.
) {
     
    const didSuspend = (workInProgress.flags & DidCapture) !== NoFlags;
    if (didSuspend) {
       
       
      const nextBaseLanes =
        prevState !== null
          ? mergeLanes(prevState.baseLanes, renderLanes)
          : renderLanes;
      if (current !== null) {
         
        let currentChild = (workInProgress.child = current.child);
         
         
         
         
        let currentChildLanes = NoLanes;
        while (currentChild !== null) {
          currentChildLanes = mergeLanes(
            mergeLanes(currentChildLanes, currentChild.lanes),
            currentChild.childLanes,
          );
          currentChild = currentChild.sibling;
        }
        const lanesWeJustAttempted = nextBaseLanes;
        const remainingChildLanes = removeLanes(
          currentChildLanes,
          lanesWeJustAttempted,
        );