Original sentence: Novell stated that the amendment "appears to bear a valid Novell signature, and the language, though convoluted, seems to support SCO's claim that ownership of some copyrights for Unix did transfer to SCO", and also said that it could not find its own copy of the amendment.SCO claimed to have discovered an amendment to their contract with Novell transfering partial ownership to SCO
Edited sentence: SCO also recently announced that it had "discovered" an amendment to their contract with Novell transfering partial ownership to SCO, however Novell can't find that file