I have a xenforo forum with an old backup and current database, both xenforo. I wish to add the old "about" field into the current database's "about" field when user id is the same. Ideally, without repeating any text. So if the old about field says "hobby:woodwork and piano", and the new profile says "hobby:woodwork", I don't want it to say "hobby:woodwork and piano hooby:woodwork". I would like it to say "hobby:woodwork and piano". I see the table xf_user_profile but I'm not sure how to write the query. How would I do this? Will this mess up anything with passwords?