Person entity possible bug - person entities are created twice?

Hello,

I am trying to use the Person integration, with the following in my configuration:

person:
- name: person1
  id: person1
  device_trackers:
  - device_tracker.person1_phone
  - device_tracker.person1_phone_bluetooth
- name: person2
  id: person2
  device_trackers:
  - device_tracker.person2_phone
  - device_tracker.person2_work_phone
  - device_tracker.person2_phone_bluetooth

This successfully created person.person1 and person.person2 entities, but it also created person.person1_2 and person.person2_2 entities. I don’t understand why that happened, possible bug?

Thanks,
Drew