From 4d2bc790fd96b68234b39e623d6147e09a444ffb Mon Sep 17 00:00:00 2001
From: kamp <nbvdkamp@gmail.com>
Date: Sat, 14 Nov 2020 13:20:16 +0100
Subject: [PATCH] Fix crash on shift+right-click deleting objects

---
 osu.Game/Screens/Edit/Compose/Components/BlueprintContainer.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/osu.Game/Screens/Edit/Compose/Components/BlueprintContainer.cs b/osu.Game/Screens/Edit/Compose/Components/BlueprintContainer.cs
index 3229719d5a..c9043ccef3 100644
--- a/osu.Game/Screens/Edit/Compose/Components/BlueprintContainer.cs
+++ b/osu.Game/Screens/Edit/Compose/Components/BlueprintContainer.cs
@@ -338,7 +338,7 @@ namespace osu.Game.Screens.Edit.Compose.Components
         /// <returns>Whether a selection was performed.</returns>
         private bool beginClickSelection(MouseButtonEvent e)
         {
-            foreach (SelectionBlueprint blueprint in SelectionBlueprints.AliveChildren)
+            foreach (SelectionBlueprint blueprint in SelectionBlueprints.AliveChildren.ToList())
             {
                 if (!blueprint.IsHovered) continue;