getAffiliations `personfirst`, `personlast`, and `orgcode` not working.

[lsetiawan]

The query for Affiliations based on personfirst, personlast, and orgcode doesn't seem to be working. When I enter those parameters, I get everything, rather than the Affiliation with the specified filtering.

I think the problem is that the code is trying to filter, but since the values are not in the base query, it's not able to query correctly.

[emiliom]

Fixed by PR #96. Closing.