From acec1159c5caa91b74a9213c537be5af94819039 Mon Sep 17 00:00:00 2001
From: maliming <6908465+maliming@users.noreply.github.com>
Date: Sat, 19 Jul 2025 18:01:46 +0800
Subject: [PATCH] Prevent duplicate entities in navigation entry list

---
 .../Abp/EntityFrameworkCore/ChangeTrackers/AbpEntityEntry.cs    | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/framework/src/Volo.Abp.EntityFrameworkCore/Volo/Abp/EntityFrameworkCore/ChangeTrackers/AbpEntityEntry.cs b/framework/src/Volo.Abp.EntityFrameworkCore/Volo/Abp/EntityFrameworkCore/ChangeTrackers/AbpEntityEntry.cs
index 7cb16ef1bb..a759ef4ea7 100644
--- a/framework/src/Volo.Abp.EntityFrameworkCore/Volo/Abp/EntityFrameworkCore/ChangeTrackers/AbpEntityEntry.cs
+++ b/framework/src/Volo.Abp.EntityFrameworkCore/Volo/Abp/EntityFrameworkCore/ChangeTrackers/AbpEntityEntry.cs
@@ -60,7 +60,7 @@ public class AbpEntityEntry
                 }
                 navigationEntry.OriginalValue ??= new List<object>();
                 var ls = navigationEntry.OriginalValue.As<List<object>>();
-                ls.Add(entityEntry.Entity);
+                ls.AddIfNotContains(entityEntry.Entity);
             }
             else
             {