Fix Legalpad Preamble
Summary: Fixes T5740, scopes sections
Test Plan: Reload Legalpad with Preamble, Diviner, and Phriction
Reviewers: epriestley
Reviewed By: epriestley
Subscribers: epriestley, Korvin
Maniphest Tasks: T5740
Differential Revision: https://secure.phabricator.com/D10077