I'll do some research today as it is probably worth knowing.
TMT listed in Germany and traded in Euro.
They did work independently though. Price overnight in Germany would go up, and converting the price to AUD you could see it was traded at a 15% premium to the ASX price, but on open our market still looked the same. Same buy/sell orders in the list, same price, and in fact the specific day I am thinking of our asx price went down. Whether there was a way to buy the low aud price and sell on the german exchange and make 15+%, I have no idea.
So there is a lot I don't understand, but definitely after listing there were no extra shares issued.