Re: [PATCH] fetch: add new fetch.default configuration

> When the user has an upstream branch configured to track a remote
> tracking branch:
>
>   % git checkout --set-upstream-to github/master
>
> Doing a 'git fetch' without any arguments would try to fetch 'github',
> because it's configured as current branch's remote
> (branch.<current>.remote).
>
> However, if we do something slightly different:
>
>   % git checkout --set-upstream-to master
>
> Doing a 'git fetch' without any arguments would try to fetch the remote
> '.', for the same reason.