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.
tMode,
        );
        break;
      }
      case 'backwards': {
         W
         A
         w
         o
        let t = null;
        let row = workInProgress.child;
        workInProgress.child = null;
        while (row !== null) {
          const currentRow = row.alternate;
           N
          if (currentRow !== null && findFirstSuspended(currentRow) === null) {
             T
            workInProgress.child = row;
            break;
          }
          const nextRow = row.sibling;
          row.sibling = t;
          t = row;
          row = nextRow;
        }
         T
        initSuspenseListRenderState(
          workInProgress,
          true,  i
          t,