[libxml2] Fix XPath recursion limit

[Nick Wellnhofer <nwellnhof src gnome org>]

commit 3e1aad4fe584747fd7d17cc7b2863a78e2d21a77
Author: Nick Wellnhofer <wellnhofer aevum de>
Date:   Wed Jun 2 17:31:49 2021 +0200

    Fix XPath recursion limit
    
    Fix accounting of recursion depth when parsing XPath expressions.
    
    This silly bug introduced in commit 804c5297 could lead to spurious
    errors when parsing larger expressions or XSLT documents.
    
    Should fix #264.

 xpath.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/xpath.c b/xpath.c
index 7497ba07..1aa2f1ab 100644
--- a/xpath.c
+++ b/xpath.c
@@ -10983,7 +10983,7 @@ xmlXPathCompileExpr(xmlXPathParserContextPtr ctxt, int sort) {
     }
 
     if (xpctxt != NULL)
-        xpctxt->depth -= 1;
+        xpctxt->depth -= 10;
 }
 
 /**