I have several applications that get unmanaged every night after business hours when the processes are shut down. The nodes that these apps are on also get unmanaged later during a nightly reboot window.
The problem is when the node is re-managed it manages all applications as well. To get around this, I have a pre reboot and post reboot unmanage schedule for all apps.
It would be great if when the node was re-managed it left the applications as is.