Quicksand - fix spooky back button issue
Summary: Fixes T7911.
Test Plan:
- load a page
- click something else
- go back to original page via clicking
- browser refresh
- click something else
- browser back -- and it now works!
Reviewers: epriestley
Reviewed By: epriestley
Subscribers: Korvin, epriestley
Maniphest Tasks: T7911
Differential Revision: https://secure.phabricator.com/D12603