Restore document (not response of any document)

Question

For a reason I don't know a document has convert to be a response of another. I need to restore or free the document in order to this document not been a response document of any document.

I found a MakeResponse function but not find a function to undo it

Thank you

I tried to copy a documment to a new one, but the new copy is a reponse too.

Answer 1

Remove the $REF field and the document should be a normal document again.