Developer credits
Git commits in Moodle 3.5.4 by Leon Stringer
commit 43246bd859817a02e1fb527a392ef412cad566d8 Author: Leon Stringer <leon.stringer@ntlworld.com> Date: Wed, 12 Dec 2018 01:22:59 +0800 Tag: v3.5.4 MDL-58596 core_stats: fixed infinite loop cause by DST change