On actions that cause a component to remount (e.g. changing a value of a hook inside the component), the `devtools` source field disappears.

https://github.com/facebook/react/assets/75563024/64d84583-d8d9-44ca-b1d7-1cb232baccce

---

React version: 18.2.0

## Steps To Reproduce

1. Clone this repo: https://github.com/idango10/fiber-debug-source-issue (simple project made with `create-react-app`, only difference is `src/App.js` and `src/Comp.js`.
2. Open `devtools` -> `Components`, and navigate to the `Comp`.
3. Verify that the source field exists.
4. Change the value of the hook (e.g. from `'initial value'` to `'new value'`) and save the file.
5. Go back to the browser. and navigate back to the `Comp` in `devtools`.
6. You'll see that the source field vanished.

## Code example:

Let's say I have two components:

```js
export function InnerComp() {
    const [value] = React.useState('initial value');

    return <span>{value}</span>;
}
```

```js
import { InnerComp } from './InnerComp';

function OuterComp() {
    return <InnerComp />;
}
```

Looking at `Comp` in `devtools` -> `Components`, we'll see that there's a source field. 
If I change `'initial value'` to `'new value'` inside `useState` of `InnerComp`:
```js
export function InnerComp() {
    const [value] = React.useState('new value');

    return <span>{value}</span>;
}
```

The source field of `Comp` will vanish.

## The current behavior
The `devtools` source field of a component vanishes after remount.

## The expected behavior
The field should stay visible.

target.child = source.child;
  target.sibling = source.sibling;
  target.index = source.index;
  target.ref = source.ref;
  target.refCleanup = source.refCleanup;
  target.pendingProps = source.pendingProps;
  target.memoizedProps = source.memoizedProps;
  target.updateQueue = source.updateQueue;
  target.memoizedState = source.memoizedState;
  target.dependencies = source.dependencies;
  target.mode = source.mode;
  target.flags = source.flags;
  target.subtreeFlags = source.subtreeFlags;
  target.deletions = source.deletions;
  target.lanes = source.lanes;
  target.childLanes = source.childLanes;
  target.alternate = source.alternate;
  if (enableProfilerTimer) {
    target.actualDuration = source.actualDuration;
    target.actualStartTime = source.actualStartTime;
    target.selfBaseDuration = source.selfBaseDuration;
    target.treeBaseDuration = source.treeBaseDuration;
  }
  target._debugSource = source._debugSource;
  target._debugOwner = source._debugOwner;
  target._debugNeedsRemount = source._debugNeedsRemount;
  target._debugHookTypes = source._debugHookTypes;
  return target;
}