Always save the user account when created via the social network authenticate service

src/User/Service/SocialNetworkAuthenticateService.php

@@ -108,7 +108,7 @@ class SocialNetworkAuthenticateService implements ServiceInterface
             $account->user_id = $user->id;
         }
 
-        if ($account->save(false)) {
+        if (!$account->save(false)) {
             return null;
         }