I'm playing the Spencer-Kim-Lewis pre-made family, and I've found there's a built-in character limit on surnames. I can't make over Olivia Spencer-Kim-Lewis (and, by extension, the rest of the family) or properly surname her newborn little sister, because the game refuses to accept their whole triple-barrelled, 17-character surname. It will accept Spencer-Kim-Le, or 14 characters, but not a character more.

How'd EA do it, then? How did they get all 17 characters in there, and is there a way players can do the same?