It seems buggy. For example, I don't like that it keeps suggesting other login names when I've already filled the field. I also don't understand what is suppose

It seems buggy. For example, I don't like that it keeps suggesting other login names when I've already filled the field. I also don't understand what is supposed to happen when the popup appears in the password field, if I choose something the username isn't changed at least. Mostly I think it gets in the way. I had no problem with the old functionality where I just wrote the username and the password was filled out when I pressed tab.