diff --git a/src/_Authorization/Framework.Authorization.Environment/MasterDetailDalGenericInterceptor.cs b/src/_Authorization/Framework.Authorization.Environment/MasterDetailDalGenericInterceptor.cs
index 1365e3eb9..8b8bef4a6 100644
--- a/src/_Authorization/Framework.Authorization.Environment/MasterDetailDalGenericInterceptor.cs
+++ b/src/_Authorization/Framework.Authorization.Environment/MasterDetailDalGenericInterceptor.cs
@@ -7,7 +7,13 @@ public class MasterDetailDalGenericInterceptor<TDomainObject, TMaster> : IDalGen
     where TMaster : class, IMaster<TDomainObject>
     where TDomainObject : class, IDetail<TMaster>
 {
-    public async Task SaveAsync(TDomainObject data, CancellationToken cancellationToken) => data.Master?.AddDetail(data);
+    public async Task SaveAsync(TDomainObject data, CancellationToken cancellationToken)
+    {
+        if (data.Master != null && !data.Master.Details.Contains(data))
+        {
+            data.Master.AddDetail(data);
+        }
+    }
 
     public async Task RemoveAsync(TDomainObject data, CancellationToken cancellationToken) => data.Master?.RemoveDetail<TMaster, TDomainObject>(data);
 }
diff --git a/src/__SolutionItems/CommonAssemblyInfo.cs b/src/__SolutionItems/CommonAssemblyInfo.cs
index 672857905..b82286081 100644
--- a/src/__SolutionItems/CommonAssemblyInfo.cs
+++ b/src/__SolutionItems/CommonAssemblyInfo.cs
@@ -4,9 +4,9 @@
 [assembly: AssemblyCompany("Luxoft")]
 [assembly: AssemblyCopyright("Copyright © Luxoft 2009-2026")]
 
-[assembly: AssemblyVersion("27.1.1.0")]
-[assembly: AssemblyFileVersion("27.1.1.0")]
-[assembly: AssemblyInformationalVersion("27.1.1.0")]
+[assembly: AssemblyVersion("27.1.2.0")]
+[assembly: AssemblyFileVersion("27.1.2.0")]
+[assembly: AssemblyInformationalVersion("27.1.2.0")]
 
 #if DEBUG
 [assembly: AssemblyConfiguration("Debug")]