Roll libxslt to 891681e3e948f31732229f53cb6db7215f740fc7

third_party/libxslt/libxslt/namespaces.c

 /*
  * namespaces.c: Implementation of the XSLT namespaces handling
  *
  * Reference:
  *   http://www.w3.org/TR/1999/REC-xslt-19991116
  *
  * See Copyright for the status of this software.
  *
  * daniel@veillard.com
  */
@@ skipping 772 matching lines @@
         }
 #else
         /*
         * TODO: Remove this if the refactored code gets enabled.
         */
         if (!xmlStrEqual(cur->href, XSLT_NAMESPACE)) {
             const xmlChar *URI;
             /* TODO apply cascading */
             URI = (const xmlChar *) xmlHashLookup(ctxt->style->nsAliases,
                                                   cur->href);
-            if (URI == UNDEFINED_DEFAULT_NS)
+            if (URI == UNDEFINED_DEFAULT_NS) {
+                cur = cur->next;
                 continue;
+            }
             if (URI != NULL) {
                 q = xmlNewNs(node, URI, cur->prefix);
             } else {
                 q = xmlNewNs(node, cur->href, cur->prefix);
             }
             if (p == NULL) {
                 ret = p = q;
             } else {
                 p->next = q;
                 p = q;
@@ skipping 37 matching lines @@
  * @style: an XSLT stylesheet
  *
  * Free up the memory used by namespaces aliases
  */
 void
 xsltFreeNamespaceAliasHashes(xsltStylesheetPtr style) {
     if (style->nsAliases != NULL)
         xmlHashFree((xmlHashTablePtr) style->nsAliases, NULL);
     style->nsAliases = NULL;
 }