enabling SPDY (patch 42) +nginx 1.3.2 breaks gzip

[pgndev]

building nginx 1.3.2 + SPDY patch
(http://nginx.org/patches/spdy/patch.spdy-42.txt)

with SPDY disabled, response headers show backend's gzip compression headers

(1) nginx/1.3.2, SPDY <- OFF + Varnish3

	nginx vhost conf:
		listen      192.168.1.17:443;
		listen      [2001:453:3cd6:7b2::9]:443 ipv6only=on;
>
	Response Headers
		Accept-Ranges	bytes
		Age	5
		Cache-Control	public, max-age=300
==>		Content-Encoding	gzip
		Content-Language	en
		Content-Length	4560
		Content-Type	text/html; charset=utf-8
		Date	Tue, 26 Jun 2012 16:55:27 GMT
		Expires	Sun, 19 Nov 1978 05:00:00 GMT
		Last-Modified	Tue, 26 Jun 2012 16:55:18 GMT
		Link	<https://test.svr06.loc/>; rel="canonical"
==>		Server	nginx
		Vary	Accept-Encoding,User-Agent
		Via	1.1 varnish
		X-Cache-Hits	1
		X-Drupal-Cache	MISS
		X-Varnish	179527312 179527285
		X-Varnish-Cache	HIT
		x-ua-compatible	IE=Edge,chrome=1


	Request Headers
		Accept	text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
==>		Accept-Encoding	gzip, deflate
		Accept-Language	en,en-us;q=0.5
		Connection	keep-alive
		Cookie	has_js=1
		DNT	1
		Host test.svr06.loc
		User-Agent	Mozilla/5.0 (X11; Linux x86_64; rv:13.0) Gecko/20100101
Firefox/13.0.1





with SPDY EN-abled, gzip response headers are missing


(2) nginx/1.3.2, SPDY <- ON + Varnish3
{{{
	nginx vhost conf:
		listen      192.168.1.17:443 ssl spdy;
		listen      [2001:453:3cd6:7b2::9]:443 ssl spdy ipv6only=on;
>
	Response Headers
		Age	26
		Cache-Control	public, max-age=300
		Content-Language	en
		Content-Type	text/html; charset=utf-8
		Date	Tue, 26 Jun 2012 16:51:22 GMT
		Expires	Sun, 19 Nov 1978 05:00:00 GMT
		Last-Modified	Tue, 26 Jun 2012 16:50:52 GMT
		Link	<https://test.svr06.loc/>; rel="canonical"
==>		Server	nginx
		Vary	Accept-Encoding,User-Agent
		Via	1.1 varnish
		X-Cache-Hits	1
		X-Drupal-Cache	MISS
==>		X-Firefox-Spdy	1
		X-Varnish	851454988 851454961
		X-Varnish-Cache	HIT
		x-ua-compatible	IE=Edge,chrome=1
>
	Request Headers
		Accept	text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
==>		Accept-Encoding	gzip, deflate
		Accept-Language	en,en-us;q=0.5
		Connection	keep-alive
		Cookie	has_js=1
		DNT	1
		Host test.svr06.loc
		User-Agent	Mozilla/5.0 (X11; Linux x86_64; rv:13.0) Gecko/20100101
Firefox/13.0.1