From 001cd1194c934d02c326ce55a8da991396e568a5 Mon Sep 17 00:00:00 2001
From: Dean Herbert <pe@ppy.sh>
Date: Fri, 11 Sep 2020 22:53:03 +0900
Subject: [PATCH] Consume BindCollectionChanged

---
 osu.Game/Screens/Edit/Editor.cs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/osu.Game/Screens/Edit/Editor.cs b/osu.Game/Screens/Edit/Editor.cs
index 896c4f9f61..d6b2b4ba3a 100644
--- a/osu.Game/Screens/Edit/Editor.cs
+++ b/osu.Game/Screens/Edit/Editor.cs
@@ -256,13 +256,13 @@ namespace osu.Game.Screens.Edit
             changeHandler.CanRedo.BindValueChanged(v => redoMenuItem.Action.Disabled = !v.NewValue, true);
 
             // todo: BindCollectionChanged
-            editorBeatmap.SelectedHitObjects.CollectionChanged += (_, __) =>
+            editorBeatmap.SelectedHitObjects.BindCollectionChanged((_, __) =>
             {
                 var hasObjects = editorBeatmap.SelectedHitObjects.Count > 0;
 
                 cutMenuItem.Action.Disabled = !hasObjects;
                 copyMenuItem.Action.Disabled = !hasObjects;
-            };
+            }, true);
 
             clipboard.BindValueChanged(content => pasteMenuItem.Action.Disabled = string.IsNullOrEmpty(content.NewValue));