Summary: Fixes T10975. The "scramble attached file permissions when an object is saved" code is misfiring here too. See T10778 + D15803 for prior work.
Test Plan:
- Ran `bin/storage upgrade -f`.
- Edited the view policy of an OAuth server (prepatch: fatal; postpatch: worked great).
Reviewers: chad
Reviewed By: chad
Maniphest Tasks: T10975
Differential Revision: https://secure.phabricator.com/D15938
