Re: [PATCH v5 0/7] Enable doing a shallow clone of a specific git revision

> The goal of this series is to add an option `--revision` to
> git-clone(1).
>
> This series starts with a handful of preparatory refactoring commits
> that make it more straight-forward to add this new option. In the last
> commit we're actually adding the feature.
>
> This series sets an example on how I think we can further refactor
> builtin/clone.c to increase the maintainability of the code.
>
> ---
> Changes in v5:
> - Add separate commit to introduce die_for_incompatible_opt2()
> - Small tweaks in documentation about `--[no-]tags` and `--revision`.
> - Better explain the refactoring of wanted_peer_refs() in the commit
>   message.
> - Change type from `int` to `size_t` in wanted_peer_refs().
> - Use lookup_commit_or_die() instead lookup_commit_reference() to avoid
>   checking the result ourself.
> - Add a few code comments to explain some things.
> - Stylish cleanups like removal of unneeded empty lines, commented out
>   test-code and remarks.
> - Link to v4: https://lore.kernel.org/r/20250131-toon-clone-refs-v4-0-2a4ff851498f@iotcl.com