Re: [PATCH 1/9] t/unit-tests: adapt lib-reftable{c,h} helper functions to clar

> We do want the Git history to be fully bisectable so that it is easy for
> contributors to find out where a specific bug has been introduced. And
> for the history to be bisectable, we must ensure that every single
> commit builds and passes our test suite. You can do that e.g. via `git
> rebase $BASE_COMMIT -x 'make -j$(nproc) test`, which builds and tests
> every single commit in your commit series.
>
> So yes, this should be adapted so that the initial commit introduces the
> new helpers without removing the old helpers yet so that the unit tests
> that haven't yet been converted continue to build and test just fine.