Developer credits
Git commits in Moodle 2.5.2 by Shane Elliott
commit c794ad68c8280e780c5348cb1732e45f77715ee0 Author: Shane Elliott <shane@pukunui.com> Date: Tue, 16 Jul 2013 16:55:12 +0800 Tag: v2.5.2 MDL-40684 Fix conditional field name for custom user fields