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