It looks like this method (`sizeInlineWidgetToContents()`) is already called on every change event in the nested editor. I believe the `editor.refresh()` here is no longer necessary; in the old v2 implementation, CM required us to refresh the editor after explicitly changing the height of the scroller, but if we're just using `height: auto` now, we probably no longer need this. Conversely, if we need to refresh the host editor after the nested editor's height changes (to fix the bug I mentioned earlier), this might be the place to do it. So maybe just changing this to `this.hostEditor.refresh()` would fix that bug.