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由 Jeff King 提交于
The point of the "index" field of struct commit is that every allocated commit would have one. It is supposed to be an invariant that whenever object->type is set to OBJ_COMMIT, we have a unique index. Commit 969eba63 (commit: push commit_index update into alloc_commit_node, 2014-06-10) covered this case for newly-allocated commits. However, we may also allocate an "unknown" object via lookup_unknown_object, and only later convert it to a commit. We must make sure that we set the commit index when we switch the type field. Signed-off-by: NJeff King <peff@peff.net> Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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