Hide Technician Assignment in request history to REQUESTER
It doesn't do any good to strip out the "Technician" field from a request, so that the user can only see what Group has ownership of their ticket, if the TECHNICIAN ASSIGNMENT HISTORY is accessible by the Requester. Should be made more generic from the Requester point of view from:
Technician changed from None to John Doe
(to)
Technician has been assigned/changed
Technician changed from None to John Doe
(to)
Technician has been assigned/changed