Re: [PATCH v2 0/2] merge-ours: sparse-index integration

> This short series teaches merge-ours to work with a sparse index as a small
> step toward broader sparse-index support.
> 
> Patch 1 is a preparatory cleanup that converts merge-ours away from
> the_repository global, using the repo parameter instead.
> 
> Patch 2 adds the actual sparse-index integration and tests.
> 
> Changes since v1:
> 
>  * Patch 1: note in commit message that RUN_SETUP guarantees repo is never
>    NULL (Patrick, Junio)
>  * Patch 2: rewrite commit message to follow the project's standard log
>    message structure (Junio)