Filters in the competitive programming section are not giving correct results

[jmgasper]

Description

• Go to https://www.topcoder-dev.com/challenges
• Select None in ‘EARN’ and ‘LEARN’ sections
• Switch on the ‘Single Round Match’ toggle and see the results(it’s same as before selecting it)
• Now select only 'Single Round Match’ (You can see multiple matching results now)

Expected:

When all three toggles in ‘COMPETITIVE PROGRAMMING’ section are selected it should retrieve matching results

For this particular case, the API is being sent parameters to search the challenge tracks, and a challenge type of SRM, which doesn't exist.

If a challenge type is given that doesn't exist, we shouldn't return any results in the API.

Ref

https://topcoder.atlassian.net/browse/PROD-3035