Actually you can tell, at a glance, how many commits are by the "owner" of a repo. They appear as dark blue in the timeline. If he has forked a project and made

Actually you can tell, at a glance, how many commits are by the "owner" of a repo. They appear as dark blue in the timeline. If he has forked a project and made his own commits, his commits will show up as "owner" (e.g. for pydanny, he has made numerous commits to his fork of django-crispy-forms)