Currently the Previous Change and Next Change commands in the Edit - Track Changes menu / Track Changes toolbar don't wrap around the list of tracked changes.
Instead they do nothing when the cursor is at the first/last tracked change.
As it came up in bug #101977 it would be nice to change this behavior to wrap around the list of changes and start over at the first / last item.
This would be similar to what Word does and would make it harder to "forget" about changes in documents.
As commented on bug 101977 I cannot see a good reason why users want to stay at the current TC. It's on the agenda for the design meeting and I will discuss this at the ESC.