iyzsong@outlook.com schreef op za 12-03-2022 om 10:22 [+0800]:
> + (user.name
> +   (git-option-value *unspecified*))

I think *unspecified* is considered an implementation detail. Proposal:
let it be #false by default, and don't serialize the option whenever it
is #false.

Also, I don't think that user names can be #false, #true or integers. 
Perhaps a 'git-string-value' would be useful?

Greetings,
Maxime.