Developer credits
Git commits in Moodle 3.3.0 by Tim Lock
commit 32a7986422e09ef653c7efd6aa461edbd30c2605 Author: Tim Lock <tim@netspot.com.au> Date: Tue, 17 Jan 2017 09:50:26 +0800 Tag: v3.3.0-beta MDL-57668 mod_assign: Fix optional_param() form processing