Dan, could you be a bit more specific about where the Location/Department/Equipment is not cleared?
If you mean the lower right section of the Advanced/Technician feeder, these are not supposed to be cleared due to this being user-entered data. The information in the left pane - User Information - should get replaced with data for primary user.
If you are trying to clear information from there, the collection variable shown in the list is TicketCIs (contents of which are later mapped into Incident.CachedEquipment for Incident creation).