From 74f67487c4d464600d917cee7fe34beccaa7557b Mon Sep 17 00:00:00 2001
From: Kamron Batman <3953314+kamronbatman@users.noreply.github.com>
Date: Tue, 17 Oct 2023 20:14:05 -0700
Subject: [PATCH] fix: Adds DupeExcludedProperty to Items (#1556)

---
 Projects/Server/Items/Item.cs       | 10 ++++++++++
 Projects/UOContent/Commands/Dupe.cs |  2 +-
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/Projects/Server/Items/Item.cs b/Projects/Server/Items/Item.cs
index 767efa6df..4875452dc 100644
--- a/Projects/Server/Items/Item.cs
+++ b/Projects/Server/Items/Item.cs
@@ -3348,6 +3348,16 @@ public class Item : IHued, IComparable<Item>, ISpawnable, IObjectPropertyListEnt
         }
     }
 
+    private static readonly HashSet<string> _excludedProperties = new()
+    {
+        "Parent",
+        "Next",
+        "Previous",
+        "OnLinkList"
+    };
+
+    public virtual bool DupeExcludedProperty(string propertyName) => _excludedProperties.Contains(propertyName);
+
     public virtual void OnAfterDuped(Item newItem)
     {
     }
diff --git a/Projects/UOContent/Commands/Dupe.cs b/Projects/UOContent/Commands/Dupe.cs
index 0911a5389..56b0f46d1 100644
--- a/Projects/UOContent/Commands/Dupe.cs
+++ b/Projects/UOContent/Commands/Dupe.cs
@@ -51,7 +51,7 @@ namespace Server.Commands
                 try
                 {
                     // Do not set the parent since it screws up mobile/container totals and weights.
-                    if (p.CanRead && p.CanWrite && p.Name != "Parent")
+                    if (p.CanRead && p.CanWrite && !src.DupeExcludedProperty(p.Name) && !dest.DupeExcludedProperty(p.Name))
                     {
                         p.SetValue(dest, p.GetValue(src, null), null);
                     }