Developer credits
Git commits in Moodle 3.1.6 by Darko Miletic
commit 7bfa58873a4ebfb5ea8b25c8f33da93f834e0df0 Author: Darko Miletic <darko.miletic@gmail.com> Date: Mon, 20 Mar 2017 15:09:15 +0800 Tag: v3.1.6 MDL-58079 core_enrol: Fixed invalid category tag
commit 6e0b2cde30397bfb34e2f8254c6b65d81c6d3ea4 Author: Darko Miletic <darko.miletic@gmail.com> Date: Fri, 17 Mar 2017 01:23:34 +0800 Tag: v3.1.6 MDL-58079 core_enrol: Implementing fix and unit test