Any replacement to the current copyright position (life plus 70 years) needs to have an answer lined up for this, and similar, messy edge cases.
Charles StrossNo two books come out the same way. Some I write by the seat of my pants; others are planned in minute detail.
Charles StrossI wanted an agent who would actually sell stuff. After two British agents failed comprehensively, I was reading Locus (the SF field's trade journal) and noticed a press release about an experienced editor leaving her job to join an agent in setting up a new agency. And I went "aha!" - because what you need is an agent who knows the industry but who doesn't have a huge list of famous clients whose needs will inevitably be put ahead of you. So I emailed her, and ... well, 11 years later I am the client listed at the top of her masthead!
Charles Stross