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.
} else {
    workInProgress = next;
  }
  ReactCurrentOwner.current = null;
}
function throwAndUnwindWorkLoop(unitOfWork: Fiber, thrownValue: mixed) {
   This is a fork of performUnitOfWork specifcally for unwinding a fiber
   that threw an exception.
  
   Return to the n This will unwind the stack, and potentially
   result in showing a fallback.
  resetSuspendedWorkLoopOnUnwind();
  const returnFiber = unitOfWork.return;
  if (returnFiber === null || workInProgressRoot === null) {
     E
     b
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    workInProgressRootExitStatus = RootFatalErrored;
    workInProgressRootFatalError = thrownValue;
     S
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