Developer credits
Git commits in Moodle 3.4.3 by Martin Mastny
commit 06d3bab902e1f023607a97070a3783d831929411 Author: Martin Mastny <mastnym@vscht.cz> Date: Tue, 27 Mar 2018 20:13:38 +0800 Tag: v3.4.3 MDL-61716 auth_oauth2: field names in mappings allow all characters