2021-05-28-add-additional-check-for-stale-app-url-changes.md

title	issue
Add-additional-check-for-stale-app-url-changes	NEXT-15488

Core

• Changed the controller for the route api/app-system/app-url-change/url-difference now it checks if the APP_url is still outdated and if so deletes the system config value indicating otherwise