I have figure out a way around. You simply DO NOT have to name a person in the photo itself when it shows a "?" tag sign. You have to tab the SEARCH bar in the gallery and there you could find an album of that person face. Go inside of it and first remove the mistaken photos if there are any. Just select them and from the triple dots sign placed at the upper right corner select REMOVE FROM THE RESULTS. After yout face album is ok, you put the name of the person there. If you try to go to the person album directly from the photo by sliding up the image and tab on the face of the founded person, if you are redirected you will not have an option for removing images from the album. I am also confused about that. I hope that helps a bit.
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