This issue is really starting to get cumbersome - I think I may have briefly touched on it before in relation to something else, but just say you haven't gotten the password stored for a particular site yet and don't know your password; so you go through the process and reset your password, however 1password only sees the password field on the page and not the username field, but it still prompts you to save the login...
With the above in mind, this means that you now have to manually go into 1Password to set the username; it would be incredibly helpful if 1Password asked you if you wanted to set the username in this instance instead.
1Password Version: 188.8.131.526
Extension Version: 4.6.3 (Firefox)
OS Version: Windows 7
Sync Type: Not Provided