Well-spotted, Ron. It's a pity that bug MDL-29873 has remained unfixed for almost a year. Unfortunately Moodle's Lesson module no longer has an active maintainer, and bugs can remain unfixed for many months or years...
Joseph
Lesson
Grading essays in Moodle Lesson
Обсуждение было заблокировано, поэтому на него нельзя больше отвечать.