Support for OpenID login authority delegation
Part of the OpenID spec is support for delegation, which allows for one url to delegate login authority to a OpenID server of its choice. I've used Redmine 0.9.2 with OpenID properly but when I change the ID url to one that delegates login to a 3rd party login no longer works. Once I change back to my old OpenID everything works properly.
Please consider adding support for this feature. I've filed this as a defect as it is part of the OpenID spec. For more information see http://openid.net/specs/openid-authentication-1_1.html#delegating_authentication or Google for various tutorials.