please offer a toggle to disable auto-save on close of cloud docs

[detailed_joy16B8]

I just effectively lost a document by learning that Photoshop saves automatically on close by default for cloud docs. There should not be two behaviors for the same function depending on whether a doc is local or in the cloud. Please offer a way to disable this. 

[detailed_joy16B8]

OK - see the version history now. Still, this should be optional