I accidentally merged two people who shouldn't have been merged. I manually deleted the person that contained all the faces with the API. I expected all the faces to go back to two unnamed clusters, but I ended up without any square detected on the assets where my two people's faces are present.
I ran the refresh job for face detection but the result is still the same. I guess I could run the reset job for face detection but I don't want to lose all the tagging and merging I did before. I also have a backup of the database I could restore, but I'm sure there must be a way to rescan all the assets and detect faces of my deleted people.
Any help is appreciated!