I have an arcgis implementation where i want to change the public services url. This requires unfederate and refederate with the new url. I have published map services and web maps and apps up and running. What is the effect of this step? Would the arcgis services added again as items when refederate? If yes, does that mean duplicate items and i shall delete old? What happens to hosted services, will they continue to be valid? Shall i update the service urls in items using python code available from esri for this situation ( for service urls and web maps)? What about apps? In other words, what is the right and safe way toget the arcgis server services urls updated with new webadaptor host? ( like moving the server webadaptor into a new host)? My deployment is highly available.