Twelve Ends??

Have you ever seen a game go to twelve ends? In the 25 years or so that I have been watching curling, I've never seen it. And thanks to the crappy WCF marketing making it difficult for those of us in Canada to watch the Round Robin of the 2009 Women's World Curling Championships (other than on CurlTV), we didn't see it this morning, either:

Sheet D 1 2 3 4 5 6 7 8 9 10 11 12 Final

Korea 1 1 0 1 0 2 0 2 0 1 0 0 8

Sweden* 0 0 2 0 3 0 1 0 2 0 0 2 10

What do you figure happened? My guess is that Sweden had a hit and stick to win in the 11th but rolled out. Does anyone know for sure?