[libxml2] Reset nsNr in xmlCtxtReset

[Nick Wellnhofer <nwellnhof src gnome org>]

commit 5930fe01963136ab92125feec0c6204d9c9225dc
Author: Nick Wellnhofer <wellnhofer aevum de>
Date:   Mon Jul 18 20:59:45 2022 +0200

    Reset nsNr in xmlCtxtReset

 parser.c | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/parser.c b/parser.c
index d278638d..e660b0a7 100644
--- a/parser.c
+++ b/parser.c
@@ -14820,6 +14820,8 @@ xmlCtxtReset(xmlParserCtxtPtr ctxt)
     ctxt->nameNr = 0;
     ctxt->name = NULL;
 
+    ctxt->nsNr = 0;
+
     DICT_FREE(ctxt->version);
     ctxt->version = NULL;
     DICT_FREE(ctxt->encoding);