Problem with cached entries w/ETag and request without If-None-Match header

[Jason Noble]

I recently ran into a bug on Squid 2.7 regarding cached content with 
ETags.  Currently, if all cached entries for a URL include ETags, and a 
request is received for said URL with no If-None-Match header, Squid 
will serve a cached entry.  This behavior does not follow RFC 2616.  I 
have attached a patch that prevents Squid from serving the cached 
entries in said case here:  
http://www.squid-cache.org/bugs/show_bug.cgi?id=2677

I would appreciate any feedback regarding this patch.
Thanks,
Jason