Map Rank -- No Result (extended characters?)

I attempted to map rank "Reto Vögeli" and got no results. I suspect this is due to the Umlaut. If there's a workaround that anyone knows, I'd appreciate it.
Conquer Club, a free online multiplayer variation of a popular world domination board game.
http://www.tools.conquerclub.com/forum/
http://www.tools.conquerclub.com/forum/viewtopic.php?f=530&t=144647
MeanestBossEver wrote:I attempted to map rank "Reto Vögeli" and got no results. I suspect this is due to the Umlaut. If there's a workaround that anyone knows, I'd appreciate it.