Function origin_remote 

async fn origin_remote(cwd: &Path, deadline: Option<Instant>) -> OriginRemote

Ask whether cwd has an origin remote at all: a local base beside one is a base nobody fetched, which is not the same as a repository without a remote to lag behind.

The question is asked with git remote, not get-url. A non-zero get-url is two answers in one shape - “no such remote” and a git that would not run - and reading both as “no remote” is how a base nobody fetched got drawn as purely local. git remote answers a list on success; a repository with none is an empty list, and anything else is a probe that did not answer.

The match is the literal origin: it is the one remote a base refresh knows how to fetch, so a repository whose only remote is named otherwise still reads as having nothing this read could refresh.