Re: [GSoC PATCH] promisor-remote: fix promisor.quiet to use the correct repository

> +test_expect_success 'promisor.quiet from submodule repo is honored' '
> +	rm -f pc-quiet-trace &&
> +
> +	# Set promisor.quiet only in the submodule, not the superproject.
> +	git -C super-work/sub config promisor.quiet true &&
> +
> +	# Push a new commit+blob to the server; the blob stays missing in the
> +	# partial-clone submodule until a lazy fetch is triggered.
> +	test_commit -C sub-pc-src updated new-file.txt "world" &&
> +	git -C sub-pc-src push "$(pwd)/sub-pc-srv.bare" HEAD:master &&
> +	git -C super-work/sub -c protocol.file.allow=always fetch origin &&
> +	git -C super-work/sub reset --mixed origin/master &&
> +
> +	# grep descends into the submodule and triggers a lazy fetch for the
> +	# missing blob; verify the fetch subprocess carries --quiet.
> +	GIT_TRACE2_EVENT="$(pwd)/pc-quiet-trace" \
> +		git -C super-work grep --cached --recurse-submodules "world" \
> +		2>/dev/null &&
> +	grep negotiationAlgorithm pc-quiet-trace | grep -e --quiet
> +'
> +
>   . "$TEST_DIRECTORY"/lib-httpd.sh
>   start_httpd
>