On Wed, Nov 16, 2016 at 04:12:20PM -0800, Norbert Kiesel wrote:
> Yes, `git rebase --onto topic1 topic1@{1} topic2` is the answer!
See also the `--fork-point` option, which (I think) should do this for
you (and is the default if "topic1" is the configured upstream for
topic2 and you just run "git rebase").
-Peff