If the members of the all visitors group lack permission to create accounts
($wgGroupPermissions['*']['createaccount']=false;), the OpenID Login shall respect this global setting and never allow the creation of new accounts, but only allow to connect the OpenID with an _existing_ account.
A patch of SpecialOpenIDLogin.Body.php will be attached.
Version: unspecified
Severity: major
URL: http://www.mediawiki.org/wiki/Extension:OpenID