What is the "From" field for?

[knight1219]

Hi! I started looking at this project and playing around with it and it does just what I need, but the Operation.From field always returns null? Is this supposed to be the old value? Ive looked at the code and it doesnt look like its ever used.

How is Operation.From supposed to be used?

[MrXander]

move & copy actions according to specification
https://datatracker.ietf.org/doc/html/rfc6902#section-4.4