Close or submit with empty password the password dialog after the session is expired

Steps to reproduce:

1. Log in (I added the key and login via Hbauth)
2. Wait for the session to expire
3. On the profile of any user, click button Follow or Unfollow, Mute, Unmute
4. You ask for the password
5. Instead of entering the password, close the dialogue with the password or press submit without a password