Looks like when we added condition and test result filtering to the result page, we forgot to add it to the Download results functionality as well - we pass the correct filter values to the query but it doesn't use them:

Reopening because I am still seeing this bug in demo with the test result filter. I think because the backend query is returning test events, we're going to get any test event that has at least 1 result matching the filter, so the current logic breaks down for multiplex results. So as an example, if we have the filter applied for positive results, the CSV download will still include all the results for a multiplex test that has at least 1 positive result.

Fwiw I think we really should be querying for test results from the backend instead of test events. That way we don't have to build a query with a bunch of filters on the backend and then filter again on the frontend like we are now.