Linus Torvalds [off-list ref] writes:
Btw, I think we should change
git-diff-tree --stdin
to look at the rest of the line.
Yes it is one of the "broken things I am aware of". It does not
even show --pretty for the same reason, and I was planning to do
a fake commit objects to handle them (taking the message from
commit, locally grafting the parents from the line to it).