Developer credits
Git commits in Moodle 2.6.7 by Tim Lock
commit 74acdec20559717cc3f97ae69792dde5e4cda07d Author: Tim Lock <tim.lock@netspot.com.au> Date: Thu, 16 Oct 2014 06:04:53 +0800 Tag: v2.6.7 MDL-47700 Grades: Sitewide overview report isn't visible in some cases