Fix printing with new scroll

Summary: Fixes T7115, at least for me. Unclear if this is the "correct" fix.

Test Plan: Try to print, get page.

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: Korvin, epriestley

Maniphest Tasks: T7115

Differential Revision: https://secure.phabricator.com/D11636