http://bugs.squid-cache.org/attachment.cgi?id=2166&action=diff

Backported to squid-3.1.5 by Kerin Millar <kerframil@gmail.com>

diff -urp squid-3.1.5.orig/src/HttpReply.cc squid-3.1.5/src/HttpReply.cc
--- squid-3.1.5.orig/src/HttpReply.cc	2010-07-15 00:40:43.562561668 +0400
+++ squid-3.1.5/src/HttpReply.cc	2010-07-15 00:51:09.046799333 +0400
@@ -607,6 +607,7 @@ HttpReply *
 HttpReply::clone() const
 {
     HttpReply *rep = new HttpReply();
+    rep->sline = sline; // used in hdrCacheInit() call above
     rep->header.append(&header);
     rep->hdrCacheInit();
     rep->hdr_sz = hdr_sz;
@@ -615,8 +616,7 @@ HttpReply::clone() const
     rep->body_pipe = body_pipe;
 
     rep->protocol = protocol;
-    rep->sline = sline;
-    rep->keep_alive = keep_alive;
+    // keep_alive is handled in HttpMsg::hdrCacheInit()
     return rep;
 }
 
diff -urp squid-3.1.5.orig/src/HttpRequest.cc squid-3.1.5/src/HttpRequest.cc
--- squid-3.1.5.orig/src/HttpRequest.cc	2010-07-02 06:47:30.000000000 +0400
+++ squid-3.1.5/src/HttpRequest.cc	2010-07-15 00:45:21.755798990 +0400
@@ -188,7 +188,7 @@ HttpRequest::clone() const
     // urlPath handled in ctor
     copy->canonical = canonical ? xstrdup(canonical) : NULL;
 
-    copy->range = range ? new HttpHdrRange(*range) : NULL;
+    // range handled in hdrCacheInit()
     copy->ims = ims;
     copy->imslen = imslen;
     copy->max_forwards = max_forwards;
@@ -358,6 +358,7 @@ HttpRequest::hdrCacheInit()
 {
     HttpMsg::hdrCacheInit();
 
+    assert(!range);
     range = header.getRange();
 }