FIX: Use user account email instead of auth email when totp is enabled.

https://meta.discourse.org/t/github-2fa-flow-broken/88674

app/controllers/users/omniauth_callbacks_controller.rb

@@ -120,6 +120,7 @@ class Users::OmniauthCallbacksController < ApplicationController
   def user_found(user)
     if user.totp_enabled?
       @auth_result.omniauth_disallow_totp = true
+      @auth_result.email = user.email
       return
     end