From ae9ce2f122fa29a65dee21db065a532201141f7e Mon Sep 17 00:00:00 2001
From: Unknown <naoey20@gmail.com>
Date: Sat, 25 Nov 2017 21:23:36 +0530
Subject: [PATCH] Unbind ruleset event from leaderboard.

---
 osu.Game/Screens/Select/Leaderboards/Leaderboard.cs | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/osu.Game/Screens/Select/Leaderboards/Leaderboard.cs b/osu.Game/Screens/Select/Leaderboards/Leaderboard.cs
index 824a54d372..3bea1d4bfd 100644
--- a/osu.Game/Screens/Select/Leaderboards/Leaderboard.cs
+++ b/osu.Game/Screens/Select/Leaderboards/Leaderboard.cs
@@ -22,6 +22,7 @@ using osu.Game.Graphics.Sprites;
 using osu.Game.Graphics;
 using osu.Framework.Logging;
 using System.Net;
+using osu.Game.Rulesets;
 
 namespace osu.Game.Screens.Select.Leaderboards
 {
@@ -206,11 +207,21 @@ namespace osu.Game.Screens.Select.Leaderboards
             this.osuGame = osuGame;
 
             if (osuGame != null)
-                osuGame.Ruleset.ValueChanged += r => updateScores();
+                osuGame.Ruleset.ValueChanged += handleRulesetChange;
+        }
+
+        protected override void Dispose(bool isDisposing)
+        {
+            base.Dispose(isDisposing);
+
+            if (osuGame != null)
+                osuGame.Ruleset.ValueChanged -= handleRulesetChange;
         }
 
         private GetScoresRequest getScoresRequest;
 
+        private void handleRulesetChange(RulesetInfo ruleset) => updateScores();
+
         private void updateScores()
         {
             if (!IsLoaded) return;