Developer credits
Git commits in Moodle 3.5.8 by Michael Hawkins
commit 61b51f93ef2ea60f3e272740196f86e0c5fe8fa9 Author: Michael Hawkins <michaelh@moodle.com> Date: Mon, 29 Jul 2019 12:01:41 +0800 Tag: v3.5.8 MDL-55451 mod_forum: Limit subscription redirect to internal URLs