I'm sure I wrote an answer to this last week. I wonder what happened to it.
Yes, it is almost certainly a bug. In particular, the current behaviours is crazy. When showing all questions on one page, it higlights just the questions on page 1.
I am acutally not sure which the best behaviour is. I can see two options
- Always show 'questions on this page' styled in a particular way, even if we are currently showing all questions on one page.
- When all questions are on one page, don't bother to highlight all questions.
I think that which of those options is better might depend on what visual style is used for this in a particular theme. Therefore, I think the best solution would be:
- On the containing div, add a classe like allquestionsononepage / multipages to say whether there are multiple pages or not.
- On the questions displayed on the current page, add class thispage.
If that seems sensible, please create a tracker issue.