test-repo/changelog_unreleased/handlebars/20031.md

Don't format <style lang=""> as CSS (#20031 by @kovsu)

{{! Input }}
<style lang="">
  .a { color: red;
  }
</style>

{{! Prettier stable }}
<style lang="">
  .a {
    color: red;
  }
</style>

{{! Prettier main }}
<style lang="">
  .a { color: red;
  }
</style>