Git commits in Moodle 3.2.3 by Eric Merrill

commit 2335a0018de522ce2264b9e748880f7268e009fb
Author: Eric Merrill <merrill@oakland.edu>
Date:   Fri, 14 Apr 2017 00:21:13 +0800
Tag:    v3.2.3

MDL-58593 database: More efficiently track issued key names

commit 330f45b6e2fd99e682f1df33d013bbca0d4d513d
Author: Eric Merrill <merrill@oakland.edu>
Date:   Wed, 15 Mar 2017 03:09:27 +0800
Tag:    v3.2.3

MDL-58262 assign: Use unique sql parameter