I'm guessing that the author wants to be sure not to get in trouble with their legal department. My contract has a similar clause (all copyright assigned to em

I'm guessing that the author wants to be sure not to get in trouble with their legal department. My contract has a similar clause (all copyright assigned to employer) but it's void because my local (non-US) legislation overrides it. Not that I want to go head to head with our legal dept to test whether it holds.