Bug: Relations Excluded from Fetch Leaderboard Response

[zysim]

We don't return the related list of Categories with the response when fetching for a leaderboard.

Step(s) to Reproduce

1. Call GET /api/leaderboards/:id

Expected Result

• Should return relations (i.e. categories)

Actual Outcome

• Doesn't return relations

[TheTedder]

That's actually not necessarily a bad thing. A lot of APIs use syntax like ?include=categories for including relations in the query. That way you can save bandwidth by not returning a potentially big list of categories and bloating the json response. Maybe we could return a list of category ids in the response by default?