http://expat.cvs.sourceforge.net/viewvc/expat/expat/lib/xmlparse.c?r1=1.164&r2=1.165

Index: lib/xmlparse.c
===================================================================
--- lib/xmlparse.c.orig
+++ lib/xmlparse.c
@@ -3725,7 +3725,6 @@ doProlog(XML_Parser parser,
         return XML_ERROR_NO_ELEMENTS;
       default:
         tok = -tok;
-        next = end;
         break;
       }
     }