From c1d133977eb49ab0ec169b4e85b5b42e11fb56ab Mon Sep 17 00:00:00 2001
From: Dean Herbert <pe@ppy.sh>
Date: Wed, 25 Oct 2017 22:17:17 +0900
Subject: [PATCH] FirstOrDefault -> SingleOrDefault

---
 osu.Game/Database/DatabaseBackedStore.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/osu.Game/Database/DatabaseBackedStore.cs b/osu.Game/Database/DatabaseBackedStore.cs
index 7ca20ac28e..2944b9eeca 100644
--- a/osu.Game/Database/DatabaseBackedStore.cs
+++ b/osu.Game/Database/DatabaseBackedStore.cs
@@ -34,7 +34,7 @@ namespace osu.Game.Database
             if (context.Entry(obj).State != EntityState.Detached) return;
 
             var id = obj.ID;
-            obj = lookupSource?.FirstOrDefault(t => t.ID == id) ?? context.Find<T>(id);
+            obj = lookupSource?.SingleOrDefault(t => t.ID == id) ?? context.Find<T>(id);
         }
 
         /// <summary>