Developer credits
Git commits in Moodle 3.5.1 by Ed Basset
commit a31a20a5c6aaee150a5a3ca67a315f5217c02fb7 Author: Ed Basset <ed.a.bassett@gmail.com> Date: Mon, 21 May 2018 18:15:26 +0800 Tag: v3.5.1 MDL-36424 wiki: set group so subwiki tabs/pages display correctly