Summary:Extension talk:OpenID/==Pitfall of this extension==

already known and filed as Bug 34357. I admit, that quickly a solution or workaround has to be found. The bug documents, why this problem appeared suddenly (because MediaWiki has changed and now demands a password for e-mail address change.)

But please upgrade your OpenID extension. The present version is much better and has an improved Preferences tab where you can manage your OpenIDs.