Re: [PATCH v3 1/7] fetch: increase test coverage of fetches

[Junio C Hamano <gitster@pobox.com>]

Patrick Steinhardt <ps@pks.im> writes:

> +test_expect_success 'backfill failure causes command to fail' '
> +	git init clone5 &&
> +
> +	write_script clone5/.git/hooks/reference-transaction <<-EOF &&
> +		while read oldrev newrev reference
> +		do
> +			if test "\$reference" = refs/tags/tag1
> +			then
> +				# Create a nested tag below the actual tag we
> +				# wanted to write, which causes a D/F conflict
> +				# later when we want to commit refs/tags/tag1.
> +				# We cannot just `exit 1` here given that this
> +				# would cause us to die immediately.
> +				git update-ref refs/tags/tag1/nested $B
> +				exit \$!
> +			fi
> +		done
> +	EOF

I think I've reviewed the previous round of these patches in
detail.  I by mistake sent a comment for this step in v2, but I
think the same puzzlement exists in this round, too.