Shiloh-Jolie Pitt

When I signed out of Yahoo! Mail and saw this on the Yahoo! Canada homepage that came up, the first thing I noticed was the hyphen placement in Shiloh-Jolie Pitt's name. I found it odd that the hyphen in the child's name was not between the two surnames of her parents. So why is the hyphen where it is? Because Yahoo! goofed - between Jolie and Pitt is where it ought to be.