3 hours of debug, this was hell:

- SAX.c parser.c xpath.c: generating IDs when not validating
  from an external parsed entity was poisoning the ID has table
  with removed values. This was killing XSLT on the KDE help
  browser.
Daniel

1 files changed, 4 insertions, 1 deletions

diff --git a/xpath.c b/xpath.c
index 48ddc75b..7d4fc328 100644
--- a/xpath.c
+++ b/xpath.c
@@ -3755,7 +3755,10 @@ xmlXPathNextNamespace(xmlXPathParserContextPtr ctxt, xmlNodePtr cur) {
  */
 xmlNodePtr
 xmlXPathNextAttribute(xmlXPathParserContextPtr ctxt, xmlNodePtr cur) {
-    if (ctxt->context->node->type != XML_ELEMENT_NODE) return(NULL);
+    if (ctxt->context->node == NULL)
+	return(NULL);
+    if (ctxt->context->node->type != XML_ELEMENT_NODE)
+	return(NULL);
     if (cur == NULL) {
         if (ctxt->context->node == (xmlNodePtr) ctxt->context->doc)
 	    return(NULL);