Developer credits
Git commits in Moodle 2.2.6 by Marina Glancy
commit 64346429fe848aa70d2aca14d69d45bd71ff56e2 Author: Marina Glancy <marina@moodle.com> Date: Thu, 13 Sep 2012 10:29:21 +0800 Tag: v2.2.6 MDL-35001 removed cycle detection from convert_to_array because it causes error in data