Not Possible to filter Spaces on favourite/favouriteUserKey in V2 API

Issue Summary

This is reproducible on Data Center: (yes) / (no)

Steps to Reproduce

1. Use the V1 Get Spaces API & filter on favourites, either via `favourite` or `favouriteUserKey` filters
2. Try to do the same with V2 APIs

Expected Results

You should be able to filter spaces via the favourites filters via V2 endpoints.

Actual Results

You are not able to filter spaces via the favourites filters via V2 endpoints.

Workaround

Continue to use the V1 endpoint, which is deprecated. This is not a valid workaround for long, since this endpoint will soon no longer be accessible.