[xml] patch: copying unlinked namespaced node

[Rob Richards <rrichards cdatazone org>]

If there are namespaces in an unlinked node which were defined in an 
ancestor, when copying the node the namespace is just thrown away.
The attached patch will reconcile the namespaces in the new node if 
namespace cant be found in either of the trees.

Rob

diff --git a/tree.c b/tree.c
index 3b66f97..6872209 100644
--- a/tree.c
+++ b/tree.c
@@ -4188,6 +4188,8 @@ xmlStaticCopyNode(const xmlNodePtr node, xmlDocPtr doc, xmlNodePtr parent,
 
                while (root->parent != NULL) root = root->parent;
                ret->ns = xmlNewNs(root, ns->href, ns->prefix);
+               } else {
+                       ret->ns = xmlNewReconciliedNs(doc, ret, node->ns);
            }
        } else {
            /*