Developer credits
Git commits in Moodle 3.7.5 by Mark Johnson
commit e5ec4988b63f57639fa563f9ac4a919d04fad299 Author: Mark Johnson <mark.johnson@open.ac.uk> Date: Mon, 13 Jan 2020 19:37:09 +0800 Tag: v3.7.5 MDL-67674 Cache: Lock rebuilding of the course category tree cache