Quote:
Originally Posted by kovidgoyal
IIRC if you do a copy and delete, the UUID is preserved.
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Looked at the code and you are right. (What a surprise.
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Possible problem: the operation isn't atomic so we can end up with the same UUID in two libraries. I doubt that is a significant problem and in any event the same thing can happen if a backup is restored, but it does mean that we cannot count on the "unique" part of the UUID.