Ok, found the solution: The tiny "Edit" text is actually a button, where you can change your position on the project. There I renamed my login account and now Ohloh counts the commits as mine.

Hi there. I had some projects that I was hosting on my website, but I moved them to Google Code. But I think I did in the wrong way, 'cause now I can't claim that I'm one of the contributors anymore. ... [More] When I try to claim such contributions, Ohloh displays the alias screen, showing the username on Google Code in the first drop down but the second drop down is completely empty. The sad bit is that I did that to three of my projects ("GUP", "timetracker" and "Move My Music".) Is there anything I can do to fix this issue? [Less]