moodle/moodle — pull request #37 by topstone (2012-06-15 01:23:37+00:00)
Title: MDL-33757 - Sorting by email address doesn't work

http://tracker.moodle.org/browse/MDL-33757

Sorting by email address (click "Email address") doesn't work on any gradebook.

(1) Open any course
(2) Click "Grades"
(3) Click "Email address" to sort