Fundamental bug - social signin not working!

The 'provider' query parameter not getting set in the 'scn-social-auth-user/authenticate' url.

After upgrading to 1.9.3 'social sign in' ceased working.

The 'provider' query parameter was not getting set correctly in the post callback redirectUrl, so it would seem that ScnSocialAuth\Authentication\Adapter\HybridAuth::authenticate was failing silently with its absence.

Prior to 1.9.3 the presence of a query subroute ensured that the query params were set correctly as part of $params parameters in Zend\Mvc\Controller\Plugin\Url::fromRoute, however with the removal of the subroute, the query parameters must be set using the $options parameter of fromRoute.