I think you need to JSON.stringify() these `settings` as well.

Hmm... perhaps we want to make the two message similar, perhaps by doing:

```javascript
console.log(
  "Merging section " + JSON.stringify(settings) + (
    section.__ycb_source__ ? (' from ' + section.__ycb_source__ + ' onto ' + this.settings[key].__ycb_source__) : ''
  )
);
```