FIX: Respect query params for latest.rss (PR #10350)

Apparently latest.json and latest.rss are not routed to the same controller methods. This change allows for any passed in query parameters to actually be applied to the rss route.

This came in as a request on meta:

https://meta.discourse.org/t/-/155812/6

GitHub

This pull request has been mentioned on Discourse Meta. There might be relevant details there:

https://meta.discourse.org/t/rss-for-unanswered-topics/155812/7

Looks correct to me. Makes .rss much much more flexible.