Bundesliga’s 50+1 Rule Going to Court

We all know about the Bundesliga's 50+1 rule, yes? It's not an extreme interpretation of Sepp Blatter's 6+5, but rather a league rule ensuring that investors can not own more than 49% of any Bundesliga club. This prevents the clubs being taken over by an Abramovich, Glazer, Hicks/Gillett or Sheikh Mansour.