[brad0]

To be blunt, if this is a problem you're using git incorrectly.

Why would you commit code for fixA on featureB?

If you're having issues with commits like this you have a people problem, not a fit problem.

[omrispector]

Actually, that is exactly the point - Git can be used in ways that obscure history. That is why correct and uniform use are important in a project. As for your question -look at the graph again. fixA was NOT necessarily committed on featureB. Very likely it was not. But it looks that way, due to the way Git manages branches.