It's kind of the nature of the beast. If you make forking and merging simple, people will do it on a whim. An indicator for the original code would maybe be u

It's kind of the nature of the beast. If you make forking and merging simple, people will do it on a whim. An indicator for the original code would maybe be useful, but it would lead to confusion when, for example, the original maintainers fade away and another repo becomes the pseudo-canonical tree.