AFAIK there is no solution for this as it's IMO "expected behavior" -
each rebased commit is a new commit in the repo. Nonetheless, I
forwarded your question to the GitHub guys. I'll post their answer
here.
Regards
--
Christian Helmuth
Genode Labs
http://www.genode-labs.com/ · http://genode.org/ · /ˈdʒiː.nəʊd/
Genode Labs GmbH · Amtsgericht Dresden · HRB 28424 · Sitz Dresden
Geschäftsführer: Dr.-Ing. Norman Feske, Christian Helmuth