rewrite_domains cuts off dynamic parts of image URLs

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Check out example page 
http://www.html.de/html-und-xhtml/39659-tweet-follow-button-anpassen.html#post28
8229
2. Notice that the post includes a graphic with the URL 
http://www.html.de/attachment.php?attachmentid=2066&d=1308593673
3. Enable rewrite_domains with domain sharding and the following config:
    ModPagespeedEnableFilters rewrite_domains
    ModPagespeedMapOriginDomain localhost www.html.de
    ModPagespeedMapOriginDomain localhost s10.bmedien.eu
    ModPagespeedMapOriginDomain localhost s11.bmedien.eu
    ModPagespeedShardDomain www.html.de s10.bmedien.eu,s11.bmedien.eu
4. I would expect the original pic URL to get rewritten using domain sharding. 
Sharding does happen, but the URL gets modified and the full SRC of the images 
now "//s11.bmedien.eu/attachment.php". Image can not be loaded any more.



What is the expected output? What do you see instead?

The original parameters in the SRC URL get cut off; URL of the pic is destroyed.
ORIGINAL URL
http://www.html.de/attachment.php?attachmentid=2066&d=1308593673
INCORRECTLY SHARDED URL
//s11.bmedien.eu/attachment.php
EXPECTED OUTPUT
//s11.bmedien.eu/attachment.php?attachmentid=2066&d=1308593673

What version of the product are you using (please check X-Mod-Pagespeed
header)?

0.9.17.7-716

Original issue reported on code.google.com by fxres...@gmail.com on 21 Jun 2011 at 12:20