Summary: cpiro reported a cache inconsistency issue from a push a while ago which this should fix (see #?????), and we haven't sync'd in a while anyway. Test Plan: Poked some interfaces very gently. Reviewers: cpiro, cpojer, tomo, jungejason, tuomaspelkonen, aran Reviewed By: tomo CC: aran, epriestley, tomo, cpiro Differential Revision: 859