Update truncated notification in channel

Currently, updating Slack settings to add notifications in the channel if the assignee field is updated doesn't update the truncated notification when the assignee is changed, instead, it fires a new notification. 

The suggestion is to update the truncated notification instead of firing a new one.

WorkAround:

A workaround to have something similar is by changing the assignee from the original notification itself and removing the 2nd notification. This will update the response in a thread.