Convert On-Prem AD Users from Office 365/Azure AD to In-Cloud accounts

There’s now a release note regarding this change at:

docs.microsoft.com/en-us/azure/active-directory/fundamentals/whats-new#novemberdecember-2018

This helps explain the background reasons for Microsoft having to fix this bug. The main thing to keep in mind is that, unfortunately this bug was giving the wrong impression that accounts synchronized from AD were ‘converted’ to cloud-only accounts, when in reality this ‘trick’ was just flipping one simple DirSyncEnabled flag and keeping all the main synchronized properties of the object. The Office 365 portal showed the accounts as “Cloud-only” because it was only looking at the DirSyncEnabled flag. So the ‘trick’ was not really converting anything at all in first place.