Cannot add a Yahoo/Fedora account to an existing account

1. Log in
2. Go to Dashboard, Settings
3. Click Yahoo under Add another account
4. Log in to Yahoo

Actual:
Error page, with the following in the logs
04:07:25,676 ERROR [org.zanata.exception.handler.AbstractExceptionHandler] (default task-64) exception happened in view: /account/openid.xhtml: java.lang.NullPointerException
at org.zanata.action.UserSettingsAction$CredentialsCreationCallback.afterOpenIdAuth(UserSettingsAction.java:352)

Expected:
Yahoo is listed under Connected Accounts