Negation in refspecs

Is there any syntax to support partial negations of refspecs, such as: +refs/heads/*:refs/remotes/origin/* !refs/heads/dont-pull: !:refs/remotes/origin/dont-push If not now, is negation something that might be possible/reasonable in a future version of Git, or is it difficult/unlikely to change?

Bug report: using git commit-tree with "-F -" adds trailing newlines

I believe I've stumbled across an inconsistency in how git commit-tree reads messages from stdin. I would expect the behavior of these two commands to be identical, and that neither would actually change any commits: git filter-branch --commit-filter 'git commit-tree $@' git filter-branch