From c5a84465192945f8cf81a2bde8e9c975504d0e76 Mon Sep 17 00:00:00 2001
From: Oleg Shilo <oleg.shilo@gmail.com>
Date: Sat, 9 Nov 2024 12:53:40 +1100
Subject: [PATCH] wix4: Issue #1667: AddDefaultNamespaces removing processing
 instructions

---
 Source/src/WixSharp/Extensions.cs | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/Source/src/WixSharp/Extensions.cs b/Source/src/WixSharp/Extensions.cs
index 44f268d4..d1d8d32e 100644
--- a/Source/src/WixSharp/Extensions.cs
+++ b/Source/src/WixSharp/Extensions.cs
@@ -2014,9 +2014,9 @@ internal static XDocument AddDefaultNamespaces(this XDocument doc)
 
                 doc.Root.RemoveAll();
 
-                //need to add namespaces (via attributes) as well
-                doc.Root.Add(newRoot.Attributes());
-                doc.Root.Add(newRoot.Elements());
+                // Walking all nodes will pick up XProcessingInstruction too
+                foreach (XNode node in newRoot.Nodes())
+                    doc.Root.Add(node);
             }
             return doc;
         }