Fix paste (again)

Summary:
I messed up D4244 (and didn't test it properly) - this change should load
the raw content so we can use it.

Test Plan: use the conduit console and actually test the paste conduit methods

Reviewers: vrana, epriestley, btrahan

Reviewed By: epriestley

CC: aran, Korvin

Differential Revision: https://secure.phabricator.com/D4245