I created a document (excel spreadsheet) in a new library - version 1.0
I went into that document, had a look around, and then exited.
I guess it must've autosaved while I was in it, because now I have a 1.1 and the item is now draft.
How do I prevent that happening for my users? They need to be able to open a document and close it without generating a new version - and how do I delete 1.1 and revert to 1.0, without restoring 1.0 as 2.0, then deleting minor versions.