Ajax quick edit of activity name does not update the calendar event name

Using the ajax quick edit of an activity name does not also update the corresponding calendar event name if a due date was applied.

Current behaviour:
1. Create an assignment with a due date into the future, and confirm after save that the assignment appears in the course calendar and upcoming events.
2. Do a 'quick edit' to change the assignment name (using ajax)
3. Check the calendar and upcoming events and note that the event name has not been changed. A page refresh (F5) doesn't resolve anything.

Expected result:
I would expect that the calendar event would have the title updated automatically. If the title of the assignment was changed via the traditional method (full edit - not ajax), then the event title is properly updated.