GET /v6/review-opportunities : Some Filters are not working

[jmgasper]

REF: https://topcoder.atlassian.net/browse/PM-1864

The following filters are not working

Skills

When we try to filter by skills( skills that have been added to the challenge the opportunity belongs to) the filter does not work. All records are returned.

In the challenge details object inside the review opportunity, the challenge skills are not found.

example

Tracks

When we try to filter by track( the track of the challenge the opportunity belongs to) the filter does not work. All records are returned.

numSubmissionsTo and numSubmissionsFrom

When we try to filter by numSubmissionsFrom = 1, no records are returned even if some of the challenges do have submissions

example ch: be1db222-b817-4b78-b7b0-e3fc1b1c6379

review id: E9_HprXDgvwcQv