When  an event administrator receives an automated email saying that an attendee has modified their registration, is it possible to know exactly what was edited?

The "Registration Update History" shows this for one of my attendees:

However, I can't seem to find the "Registration" section of their record. I only see Personal Information, Custom Fields, Agenda, Merchandise, Transactions, Lodging + Travel + Additional Preferences.

How can I find out exactly what the attendee edited?

Thanks.