Thread:Extension talk:GoogleLogin/Internal error " WEBROOT /mediawiki-1.22.2/includes/htmlform/HTMLForm.php: HTMLForm: no submit callback provided. Use setSubmitCallback() to set one."/reply (17)

Regarding create account rights. No, I don't like to change the behaviour in general. I've in mind from the past that OpenID extensions creates a user automatically based on the Google account nickname. A password isn't stored within the MW. So that you are only able to login to MW if the extension openId is activated. As OpenID is not longer recommended by Google new user authentifications must be switched over to OAuth. That's the reason for using GoogleLogin as it is the best alternative I've seen so far with a very active maintenance. :-)