René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"`active_branch` is detected incorrectly when using `reftable`","articleBody":"On git repositories using the new [`reftable`][reftable] format (slated to [become the default][reftable-default] in the upcoming Git 3.0.0), GitPython detects the wrong ref as being active.\n\nObserve, with the traditional \"files\" format:\n\n```bash\nmkdir test\ncd test\ngit init --ref-format=files\nuvx --with gitpython python -c \"import git; print(git.Repo('.').active_branch.name)\"\n```\n\nProduces `main` as expected. However:\n\n```bash\nmkdir test\ncd test\ngit init --ref-format=reftable\nuvx --with gitpython python -c \"import git; print(git.Repo('.').active_branch.name)\"\n```\n\nProduces `.invalid`.\n\n[reftable]: https://git-scm.com/docs/reftable\n[reftable-default]: https://git-scm.com/docs/BreakingChanges","author":{"url":"https://github.com/alynn-coefficient","@type":"Person","name":"alynn-coefficient"},"datePublished":"2026-03-19T19:54:11.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":3},"url":"https://github.com/2113/GitPython/issues/2113"}