}

const (
	// How much have we fetched into the git repo (in this process)?
	fetchNone = iota // nothing yet
	fetchSome        // shallow fetches of individual hashes
	fetchAll         // "fetch -t origin": get all remote branches and tags
)

// loadLocalTags loads tag references from the local git cache
// into the map r.localTags.
func (r *gitRepo) loadLocalTags(ctx context.Context) {