RE: What's in git.git

Looks very close to what I want.

git checkout topic
git format-patch --stdout origin > topic-diff

 topic-diff contains each commit as a separate message

$VISUAL topic-diff
# Fix comments

 so this needs some skill & care to rearrange the pieces
 and end up with legal input to git-am

Perhaps I'd like to have:

 git diff SHA-where-I-branched..HEAD

but I don't see the way to compute the SHA-where-I-branched

-Tony