Seems like it doesn't work, or I am doing something wrong. I tried to edit just the password of two accounts and then I tried logging into those accounts and it is giving me a wrong username/password error. I thought it worked originally, but I guess it is not replacing the passwords correctly?
It shoudl work OK now, but I'm afraid you will have to change the ones you have already changed again. This time though when you update the passwords they should work