Re: [PATCH v2] promisor-remote: fix segfault when remote URL is missing

> Is a configured remote with out a url key really a missing url, though?
> In other contexts it defaults to the name of the remote. E.g.:
>
>   # make a repo so "foo" is a valid url
>   git init foo
>   git -C foo commit --allow-empty bar
>
>   # configure a fetch refspec, but no url!
>   git init
>   git config remote.foo.fetch '+refs/heads/*:refs/remotes/foo/*'
>
>   # now fetching will use the configured refspec with a url of "foo"
>   git fetch foo
>
>   # and git-remote will report it, along with its url
>   git remote ;# shows "foo"
>   git remote --get-url foo ;# also shows "foo"