Summary: Fixes T7669. Broken by D12163 re-factoring and foolihardiness of test coverage. Notably / interestingly, this was broken before D12163 from not implementing policy correctly, so Conpherence has been broken for a bit with few reports.
Test Plan: had user send himself a message
Reviewers: chad, epriestley
Reviewed By: chad, epriestley
Subscribers: Korvin, epriestley
Maniphest Tasks: T7669
Differential Revision: https://secure.phabricator.com/D12177