Summary: Not sure if this is the correct fix, but I think it's where you intend to go?
Test Plan: Click on link in Task, get the the correct board. Click lots of links of boards and make sure everything still works.
Reviewers: epriestley
Reviewed By: epriestley
Subscribers: epriestley, Korvin
Maniphest Tasks: T5361
Differential Revision: https://secure.phabricator.com/D9520