From d7f9b8045cc99a153342527217246953c146401f Mon Sep 17 00:00:00 2001
From: smoogipoo <smoogipoo@smgi.me>
Date: Thu, 1 Oct 2020 21:33:54 +0900
Subject: [PATCH 1/2] Safeguard againts multiple ApplyResult() invocations

---
 osu.Game/Rulesets/Objects/Drawables/DrawableHitObject.cs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/osu.Game/Rulesets/Objects/Drawables/DrawableHitObject.cs b/osu.Game/Rulesets/Objects/Drawables/DrawableHitObject.cs
index f159d28eed..abfe7eb58c 100644
--- a/osu.Game/Rulesets/Objects/Drawables/DrawableHitObject.cs
+++ b/osu.Game/Rulesets/Objects/Drawables/DrawableHitObject.cs
@@ -469,6 +469,9 @@ namespace osu.Game.Rulesets.Objects.Drawables
         /// <param name="application">The callback that applies changes to the <see cref="JudgementResult"/>.</param>
         protected void ApplyResult(Action<JudgementResult> application)
         {
+            if (Result.HasResult)
+                throw new InvalidOperationException($"Cannot apply result on a hitobject that already has a result.");
+
             application?.Invoke(Result);
 
             if (!Result.HasResult)

From 042c39ae1b04f3653cb068acb2089f01213a3aed Mon Sep 17 00:00:00 2001
From: smoogipoo <smoogipoo@smgi.me>
Date: Thu, 1 Oct 2020 21:48:45 +0900
Subject: [PATCH 2/2] Remove redundant string interpolation

---
 osu.Game/Rulesets/Objects/Drawables/DrawableHitObject.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/osu.Game/Rulesets/Objects/Drawables/DrawableHitObject.cs b/osu.Game/Rulesets/Objects/Drawables/DrawableHitObject.cs
index abfe7eb58c..a2d222d0a8 100644
--- a/osu.Game/Rulesets/Objects/Drawables/DrawableHitObject.cs
+++ b/osu.Game/Rulesets/Objects/Drawables/DrawableHitObject.cs
@@ -470,7 +470,7 @@ namespace osu.Game.Rulesets.Objects.Drawables
         protected void ApplyResult(Action<JudgementResult> application)
         {
             if (Result.HasResult)
-                throw new InvalidOperationException($"Cannot apply result on a hitobject that already has a result.");
+                throw new InvalidOperationException("Cannot apply result on a hitobject that already has a result.");
 
             application?.Invoke(Result);