From ee7e2b0854a8096dd55c1e3472b8964311df2897 Mon Sep 17 00:00:00 2001
From: smoogipoo <smoogipoo@smgi.me>
Date: Fri, 10 Apr 2020 13:29:46 +0900
Subject: [PATCH] Fix editor beatmap potentially not updating hitobjects

---
 osu.Game/Screens/Edit/EditorBeatmap.cs | 21 +++++++++++++++++----
 1 file changed, 17 insertions(+), 4 deletions(-)

diff --git a/osu.Game/Screens/Edit/EditorBeatmap.cs b/osu.Game/Screens/Edit/EditorBeatmap.cs
index 7f04a7a58d..efffde54b3 100644
--- a/osu.Game/Screens/Edit/EditorBeatmap.cs
+++ b/osu.Game/Screens/Edit/EditorBeatmap.cs
@@ -63,6 +63,7 @@ namespace osu.Game.Screens.Edit
                 trackStartTime(obj);
         }
 
+        private readonly HashSet<HitObject> pendingUpdates = new HashSet<HitObject>();
         private ScheduledDelegate scheduledUpdate;
 
         /// <summary>
@@ -74,15 +75,27 @@ namespace osu.Game.Screens.Edit
         private void updateHitObject([CanBeNull] HitObject hitObject, bool silent)
         {
             scheduledUpdate?.Cancel();
-            scheduledUpdate = Scheduler.AddDelayed(() =>
+
+            if (hitObject != null)
+                pendingUpdates.Add(hitObject);
+
+            scheduledUpdate = Schedule(() =>
             {
                 beatmapProcessor?.PreProcess();
-                hitObject?.ApplyDefaults(ControlPointInfo, BeatmapInfo.BaseDifficulty);
+
+                foreach (var obj in pendingUpdates)
+                    obj.ApplyDefaults(ControlPointInfo, BeatmapInfo.BaseDifficulty);
+
                 beatmapProcessor?.PostProcess();
 
                 if (!silent)
-                    HitObjectUpdated?.Invoke(hitObject);
-            }, 0);
+                {
+                    foreach (var obj in pendingUpdates)
+                        HitObjectUpdated?.Invoke(obj);
+                }
+
+                pendingUpdates.Clear();
+            });
         }
 
         public BeatmapInfo BeatmapInfo