With this:

```js
    const Add = React.memo(props => {
      return props.inner + props.outer;
    });
    Add.defaultProps = {
      inner: 2,
    };
    const LazyAdd = lazy(() => fakeImport(Add));
```

If I render `LazyAdd` again after it resolves, it won't get the `inner` default prop value. This is a bug.
current.alternate = null;
      workInProgress.alternate = null;
      
      workInProgress.effectTag |= Placement;
    }
    
    constructClassInstance(
      workInProgress,
      Component,
      nextProps,
      renderExpirationTime,
    );
    mountClassInstance(
      workInProgress,
      Component,
      nextProps,
      renderExpirationTime,
    );
    shouldUpdate = true;
  } else if (current === null) {
    
    shouldUpdate = resumeMountClassInstance(
      workInProgress,
      Component,
      nextProps,
      renderExpirationTime,
    );
  } else {
    shouldUpdate = updateClassInstance(