Summary:
Change all instances of `id(new DifferentialRevision())->load($id)` for `DifferentialRevisionQuery` where reviewers are loaded.
Also make sure that the new reviewer status is being loaded so that all calls to `getReviewers` can be removed in the near future.
Test Plan: Use all three controllers with several revisions and check they still work in sane way
Reviewers: epriestley
Reviewed By: epriestley
CC: aran, Korvin
Maniphest Tasks: T1279
Differential Revision: https://secure.phabricator.com/D6466
ee9fac5c8f