Option to block notification of a change to an assignment

Idea created by John Norvell on Jan 24, 2019

    When details of an assignment (quiz questions, values, due dates) are changed, there should be a check box right by the "save" button to suppress notification of the change. There is a forum thread full of various reasons an instructor might want to do this ("Can an instructor turn off student notifications for a course?"). For me, I would want this when making changes to assignments once the course is published and under way and the assignments are sufficiently in the future. In a recent course, I made (ahem) dozens of bone-headed mistakes with due dates and times, and the students and I got a blizzard of notifications as I sorted it all out.