R1:2518a5eaff2b

Fix exception on /project/

Summary: I missed testing this case when re-doing the navigation.

Test Plan: Test /project/, don't see fatal. Test mobile menu, works as expected.

Reviewers: btrahan, epriestley

Reviewed By: epriestley

Subscribers: Korvin, epriestley

Differential Revision: https://secure.phabricator.com/D11868