New HIre: Potential Duplicate Person

When entering new hire via self service we get the following message if a duplicate exists:

Click an existing record to indicate the new hire is the same person, or click No Match to ignore the duplicate people and create a new record.

Once we click on the existing record we receive the following message.

The duplicate you have selected already exists in the current business group, or is already mapped to a person in the current business group. You cannot create a duplicate if the person is in the same business group, or is already mapped to a person in the current business group.