To me its beautiful, because it does what an issue tracking system does not do: it explains everything. Who, why, how, what, when. It is beautiful and simple documentation.
Issue tracking typically revolves about the who, what, when - not why it happened, or how it was resolved.
This is why I believe that code can never be fully self-documenting. I can't understand why the code exists from reading it. All the floofy contextual stuff is missing, and commits like this help to explain the floofiness.