Seeing as how it is impossible to close a project without saving it, or avoiding it saving as you click around and look at stuff, I think even if there are such international laws we’re in the clear.
At any rate, here are some previous threads on the matter:
- scrivener saves unchanged projects
- Finder Date Modified changed when no modification is made
- Scrivener Starts with Document as Modified
- file modified date changes on view only?
- Open but unchanged projects marked as modified in v3
If it’s a matter of a project you absolutely do not want changed going forward, the way I approach that matter is to zip up projects I’m done with. If I ever need to reference one of them, I simply double-click the .zip in Finder, then open the copy that gets created. When I’m done I discard the copy. It’s always going to come out of the .zip file the same way in that condition.