Whenever the update-workitem is called with a message, where the length of the body is greater than 4000, the substring(0,4000) function is called, but the result is not written back to the commentToAdd variable - so the full message is further processed, and the action log is not added to the workitem.
Whenever the update-workitem is called with a message, where the length of the body is greater than 4000, the substring(0,4000) function is called, but the result is not written back to the commentToAdd variable - so the full message is further processed, and the action log is not added to the workitem.