R1:5b8b5f214148

Correct issue with "bindings" conduit attachment

Summary: Ref T13641. These conditions are swapped, and "activeBindings" loads more data than necessary while "bindings" doesn't load enough.

Test Plan: Called method with each attachment, got good results instead of an exception.

Maniphest Tasks: T13641

Differential Revision: https://secure.phabricator.com/D21657