waivers/+filtered API endpoint: handle scenarios (#431) #105
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The FilteredWaiversResource method which backs this endpoint tries to find only 'current' waivers by grouping all waivers by subject_type, subject_identifier and testcase, then taking only the highest-numbered waiver from each group. This breaks if we have multiple waivers for the same subject and testcase but with different scenarios - the endpoint will only return one waiver, the one with the highest ID, and will not return the valid and current waivers for other scenarios as it should.