I have recently discovered the People feature of Google Photos to group photos of the same person together in an album. Once all your photos have been grouped, you can tell Google who the person is (it pulls the names of your contacts to assign to the groups). However, there seems to be no way to then link this photo group back to your contacts - it seems to be a one way affair.
Has anyone managed to do this?
EDIT: Just to clarify, I want this to be an automated process; in that if a particular person in my contact list has a Google Photos group associated to them, thier contact photo should be automatically set.