A participant selected the multiple registration method for a FAF event. After registering more than 1 person, the system shows duplicate registration records, all with the same supporter ID. Because this was entered as a multiple registration transaction, the system does not allow for one registration to be reversed or edited. Doing so will reverse the transaction owner's original registration, therefore both will be deleted. Editing the names or records applies the changes to both contact records, since they share the same supporter id.
This solution describes how the duplication can happen and how to manage the additional registrations.