Mike McCormack [off-list ref] writes:
btw. I'm not the only person having this problem. Others using the
same commands, and upgrading GIT have run into it too, so something
has changed...
Sorry, I accidentally removed the part from my message where I
said "Yes it was changed on Nov 28 after discussion on the list
regarding rebase".
$ git whatchanged -S'is up to date' git-rebase.sh
would show that commit.