Comment 1 for bug 1467668

I'm not convinced it's better. Imagine that you make GET and PUT requests, and plumb the output of the GET into the input of the PUT; you'd end up creating some object. COPY is like doing that, but without the requirement that you move all the bytes across the cluster boundary twice.

If you did the PUT+GET with multiple byteranges on the GET, you'd end up with an object whose contents are a MIME document. The fact that COPY does this already seems exactly right.