Issue Summary

Bulk Change Work Item "Edit Issue -> Change Comment" will result on customer notification in JSM project even if  "Send mail for this update" is unchecked.

Steps to Reproduce

1. Choose Search > View all work items.
2. Adjust the search criteria to show the appropriate list of work items.
3. Select more (•••) and choose Bulk Change all <n> work items.
4. Select the work items you'd like to perform the bulk operation on, and select Next.
5. Pick "Edit Issue" then add a public comment with "Change Comment" option
6. Keep Send mail for this update unchecked
7. Perform bulk update

Expected Results

No notifications are send to customers

Actual Results

Customer will receive a notification regarding the comment update

Workaround

From your service project, select Project settings, then Notifications, then Customer notifications. Then, disable the Customer notification for "Public Comment Added" prior to carrying out the bulk update.