That's just stupid. Why release a song in only one country..? It makes no sense at all and it stimulates piracy, because people refuse to buy the same album twice for only one song. And I am not saying I encourage it, I do not at all. I don't understand it at all. Really strange decisions, because people will get to hear the song anyway.
Regular Germans and rest of the world fans won't know that there is a difference, and will buy the cd anyway, is just us, die hard fans, who know about it, and cares...
Maybe is a way to avoid German buying imports, offering the chance of buying the same cd but with one more song that only Germany edition has.
When STP in the USA had "Do America" instead "One More Matinee", Universal UK decided to release, just for the UK, the two songs in the cd, having three editions, the most complete only for the UK, with "Do America" only for the USA, and "One More Matinee" for all over the world editions, except USA...
Marketing things... Getting our money for nothing.