What the the practice for cleaning up cancelled CancellationTokenSource objects?

[aaronatweta]

Can someone tell me what the correct practice is for cleaning up a UniTask that has been cancelled via a CancellationTokenSource? In the UniTaskViewer panel I am seeing some dangling tasks with the "Cancelled" status so I want to know what needs to be done to make sure these things are cleaned up correctly?

I have seen exampled that have a Cancel, Dispose, New' idiom but that can't always be done if something else is cancelling the CTS such as the GetCancellationTokenOnDestroy or something that is cancelled by someone else.