I have a macOS and iOS app, based on NSDocument and UIDocument respectively.
They synchronize their documents via iCloud Drive.
I noticed that NSDocument.revert(toContentsOf:ofType:) is called on the Mac when a document is merely opened in the iOS app:
- Open the Mac app and open a document in iCloud Drive
- Open the same document with the iOS app
NSDocument.revert(toContentsOf:ofType:)is called in the Mac app causing it to reload its contents unnecessarily, since the file contents have not been changed.
I observed that the file's content access date and attribute modification dates change upon opening (NSURLAttributeModificationDateKey, NSURLContentAccessDateKey).
The documentation says:
NSDocument.revert(toContentsOf:ofType:)
Discards all unsaved document modifications and replaces the document’s contents by reading a file or file package located by a URL of a specified type.
It seems quite unnecessary to discard all unsaved changes and replacing the document's contents when the contents did not change.
Is it intended behavior to revert a document's contents when only the file attributes change or did I miss anything?
