libgit2/libgit2 — pull request #1549 by nulltoken (2013-05-05 14:53:44+00:00)
Title: Strict/lax commit API

This makes:
- `git_commit_create()` more strict. The passed tree must be owned by the repo.
- `git_commit_create_from_oids()` more lax. The passed tree_oid can now be a plain simple oid.