---
type: change
message: |-
refactor how commits are created, as well as how reference following is done
In light of the upcoming combine commit feature, it will be necessary to have
more fine-grained control over how commits are created and stored. This change
attempts to address that, by adding a CommitBare method, which the Commit method
then uses. CommitBare merely creates and stores a commit, without updating HEAD.
Since Commit now has to figure out the parent commit of the HEAD, and deal with
the case of HEAD not being set (a new repo, or an orphan branch), the logic for
reference traversal had to be refactored some as well.
change_hash: AKwHmb4T5APrl3EL7Ox27ABGWrjqjlOGvBD1cOycgPcN
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account: mediocregopher
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