Gajim won't ask again for my password if I mistype it

Bug description

I don't save my password in Gajim, I prefer to type it again every time I run it. However, if I mistype my password, I just get a dialog box saying "please check your password for correctness". I would expect it to ask me again.

Steps to reproduce

1. Create a new account

2. Uncheck "save password"

3. Try to connect using that account

4. Mistype your password

Software versions

OS version: Debian sid

GTK version: 2.24.31

PyGTK version: 2.24.0