Git commits in Moodle 3.7.6 by Jonathon Fowler

commit 4ca4651f20835371ea0e809c261d36a88caf2c7a
Author: Jonathon Fowler <fowlerj@usq.edu.au>
Date:   Tue, 03 Dec 2019 13:20:40 +0800
Tag:    v3.7.6

MDL-67442 assign: expand/contract text works in all browsers now