Fixed issue with LDAP role not being respected (#1728)

app/controllers/sessions_controller.rb

@@ -228,7 +228,7 @@ class SessionsController < ApplicationController
 
     send_invite_user_signup_email(user) if invite_registration && !@user_exists
 
-    user.set_role :user unless @user_exists
+    user.set_role :user if !@user_exists && user.role.nil?
 
     login(user)
 

app/models/concerns/auth_values.rb

@@ -63,7 +63,7 @@ module AuthValues
       role_provider = auth['provider'] == "bn_launcher" ? auth['info']['customer'] : "greenlight"
       roles.each do |role_name|
         role = Role.find_by(provider: role_provider, name: role_name)
-        user.role = role if !role.nil? && !user.has_role?(role_name)
+        user.set_role(role_name) if !role.nil? && !user.has_role?(role_name)
       end
     end
   end