next time please leave a better change set comment, for more info see https://wiki.openstreetmap.org/wiki/Good_changeset_comments, also I doubt that diet:pizza is the correct tagging to use in this 
case (for more info see https://wiki.openstreetmap.org/wiki/Key:diet:*); from what I can tell cuisine:pizza would be a better tag, for more info on that see https://wiki.openstreetmap.org/wiki/Key:cuisine