Same as above for `text`, but...

Since this is coming from a different translator, it's possible that it could already have something in the extra field. Unless you're sure you want to be removing whatever is there already, you should so something like
```
item.extra = (item.extra ? item.extra + "\n" : '') + 'SomeLabel: ' + id.textContent
```
(textContent will return text as written in HTML, which could include extra whitespace, which is why I usually pass it through `ZU.trimInternal`)