That's pretty hard to reconcile with OP's claim:

> In 2010, I wrote A successful Git branching model and created a diagram to go with it. I designed that diagram in Apple Keynote, at the time obsessing over the colors, the curves, and the layout until it clearly communicated how branches relate to each other over time. I also published the source file so others could build on it.

If you mean that the Microsoft publisher shouldn't be faulted for assuming it would be okay to reproduce the diagram... then said publisher should have actually reproduced the diagram instead of morging it.