Part of a sync tool's function is finding dupes.
How do sync tools distinguish between 2 identical pictures in the same folder when one is named X.jpg and the other is named Y.jpg?
Tell me the name of such apps and I will check them out.
How does it happen that the same picture has 2 names in the same folder?
Or any other folder for that matter. Because it's a different file.
Has a different timestamp too, which syncing tools look at.
As soon as a file is renamed it is a different file. Name has always been part of the file definition to me, and I suspect most people.
If somebody else wants to use a different definition, fine with me.
If I do something with x.jpg in photoshop and save it as y.jpg it's because I had a purpose for the new file name. Even if I made no changes, I did that myself for some purpose. Hopefully named it according to that purpose, and not "y."
That kind of situation is a manual process, and IMO should be fixed manually.
Sure, you can do byte by byte compares of 2 files regardless of name.
Kludgey process, requiring for example that every file sized 2048 bytes be compared to every other file sized 2048 bytes, regardless of name or timestamp.
Doubt you'll ever find 2 different named files with the same byte by byte contents unless you did it yourself with some purpose in mind. You can even put your timestamp on files. In the past as least.
Anyway, I don't care what anybody uses to take care of duplicate files.
Just suggested an alternative.