Why not just _also_ limit it by what is already merged in my tree?
Ie just do
git fetch linus
git-rev-list --no-merges newhead ^oldhead ^linus
Doh! Ok, now I see that you mean _instead_ (of trying to select by
committer) rather than _also_.
That is a whole lot simpler!
-Tony
[But finding out what I committed between two releases is also
useful for status report writing purposes, so this has been a
a useful learning exercise]