Re: [PATCH 0/7] setup: enforce repo passed to `create_repository()` has no state

> 
> when creating a new repository via `create_repository()` we pass in a
> repository. This repository is acting as an in/out parameter: the caller
> expects that it will be fully configured after the call, but the
> function itself also uses some information from the passed-in repository
> to figure out how exactly we want to create it.
> 
> This interface is quite confusing, as it's not obvious at all what
> configuration of the repository is relevant. We have thus over a couple
> of patch series reduced the use of the parameter as in/out parameter. So
> now, the only piece of info that is still being propagated via the repo
> is "core.sharedRepository".
> 
> This patch series cleans up that last remaining part so that the repo
> becomes purely an out-parameter. To ensure that this is the case we also
> start to `repo_clear()` it as a first step.
> 
> Besides simplifying the interface, the intent is also to go further into
> the direction of unifying repository initialization in a follow-up patch
> series.
>