From c1c5b5da8e703e7fc37b9585c4c63f743d4a7180 Mon Sep 17 00:00:00 2001
From: Dean Herbert <pe@ppy.sh>
Date: Fri, 2 Oct 2020 17:15:58 +0900
Subject: [PATCH] Push state change on control point group addition / removal

---
 osu.Game/Screens/Edit/Timing/TimingScreen.cs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/osu.Game/Screens/Edit/Timing/TimingScreen.cs b/osu.Game/Screens/Edit/Timing/TimingScreen.cs
index 0a0cfe193d..3b3ae949c1 100644
--- a/osu.Game/Screens/Edit/Timing/TimingScreen.cs
+++ b/osu.Game/Screens/Edit/Timing/TimingScreen.cs
@@ -87,6 +87,9 @@ namespace osu.Game.Screens.Edit.Timing
             [Resolved]
             private Bindable<ControlPointGroup> selectedGroup { get; set; }
 
+            [Resolved(canBeNull: true)]
+            private IEditorChangeHandler changeHandler { get; set; }
+
             [BackgroundDependencyLoader]
             private void load(OsuColour colours)
             {
@@ -146,6 +149,7 @@ namespace osu.Game.Screens.Edit.Timing
                 controlGroups.BindCollectionChanged((sender, args) =>
                 {
                     table.ControlGroups = controlGroups;
+                    changeHandler.SaveState();
                 }, true);
             }