If you have `memo(forwardRef(X))`, then the inner component won't have a "rendered by" list. This is because it technically doesn't have an owner. It is artificial.

I think we should ideally set up `_debugOwner` for these Fibers in DEV just so existing tooling can find them. Or special case them in DevTools.
mode: TypeOfMode,
  lanes: Lanes,
): Fiber {
  let owner = null;
  if (__DEV__) {
    owner = element._owner;
  }
  const type = element.type;
  const key = element.key;
  const pendingProps = element.props;
  const fiber = createFiberFromTypeAndProps(
    type,
    key,
    pendingProps,
    owner,
    mode,
    lanes,
  );
  if (__DEV__) {
    fiber._debugSource = element._source;
    fiber._debugOwner = element._owner;
  }
  return fiber;
}
export function createFiberFromFragment(
  elements: ReactFragment,
  mode: TypeOfMode,
  lanes: Lanes,
  key: null | string,
): Fiber {