Some server error messages are not correctly sent or processed during the /Continue phase.
On example (debug file on the Server):
OpenID: response3: Auth_OpenID_ServerError Object
(
[message] => [text] => Request was for http://openid-wiki.instance-proxy.wmflabs.org/wiki/Special:OpenIDServer/id, cannot reply with identity http://openid-wiki.instance-proxy.wmflabs.org/wiki/User:Admin [contact] => [reference] =>
)
Version: master
Severity: normal