Hi Karl,
As far as I know although both types look similar the Edinburgh one is a clone and only divided, the seedlings don't come very pink. The Gothenburg one has been selected over time so that the seedlings come as pink as the parents, the plants under this name are not necessarily clones. Both are available in Scotland and not necessarily differentiated when they are sold, which clones they originally were have been lost in time.
I am not sure where either originally came from, maybe some of the Swedes can give a better understanding.
Susan