From 230b4030aec98f331df86c53d3a2452cb862a36b Mon Sep 17 00:00:00 2001
From: Dan Walmsley <dan@walms.co.uk>
Date: Mon, 27 Apr 2020 15:44:41 -0300
Subject: [PATCH] only call SetMenu once OSX.

---
 src/Avalonia.Native/AvaloniaNativeMenuExporter.cs | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/src/Avalonia.Native/AvaloniaNativeMenuExporter.cs b/src/Avalonia.Native/AvaloniaNativeMenuExporter.cs
index 2b682b37c2..1e488505d6 100644
--- a/src/Avalonia.Native/AvaloniaNativeMenuExporter.cs
+++ b/src/Avalonia.Native/AvaloniaNativeMenuExporter.cs
@@ -150,16 +150,23 @@ namespace Avalonia.Native
 
         private void SetMenu(IAvnWindow avnWindow, NativeMenu menu)
         {
+            var setMenu = false;
+
             if (_nativeMenu is null)
             {
                 _nativeMenu = IAvnMenu.Create(_factory, true);
 
-                _nativeMenu.Initialise(this, menu, "");                
+                _nativeMenu.Initialise(this, menu, "");     
+
+                setMenu = true;           
             }
 
             _nativeMenu.Update(_factory, menu);
 
-            avnWindow.SetMainMenu(_nativeMenu);
+            if(setMenu)
+            {
+                avnWindow.SetMainMenu(_nativeMenu);
+            }
         }
     }
 }