What steps will reproduce the problem?
1. try to clone any resource (the new button in the property view)

What is the expected output?
- rdfauthor init with the init service
- the service creates the json for the new cloned resource
  (cloning means, new URI while you have all "old" property/values"
- create a new cloned resource from the old one

What do you see instead?
- parser error if the values are literals
- nothing if the values are URI

I've attached an initial json file, the result is an empty author form here ...