Git commits in Moodle 3.7.3 by Raphaël Santos

commit 070453243b80bb63f21e331a140b182071d8307b
Author: Raphaël Santos <raphael.santos@liip.ch>
Date:   Wed, 21 Aug 2019 15:55:55 +0800
Tag:    v3.7.3

MDL-66409 mod_lesson: Fix editing of numerical pages