From 41d4609c9238e26b8f4fb73a68bb381eff1cf04e Mon Sep 17 00:00:00 2001
From: Dean Herbert <pe@ppy.sh>
Date: Sun, 15 Dec 2019 02:36:49 +0900
Subject: [PATCH] Fix crash on trying to retrieve mods from unavailable ruleset

---
 osu.Game/OsuGameBase.cs | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/osu.Game/OsuGameBase.cs b/osu.Game/OsuGameBase.cs
index 21cc4eaccc..22b8d9d012 100644
--- a/osu.Game/OsuGameBase.cs
+++ b/osu.Game/OsuGameBase.cs
@@ -246,8 +246,11 @@ namespace osu.Game
         {
             var dict = new Dictionary<ModType, IReadOnlyList<Mod>>();
 
-            foreach (ModType type in Enum.GetValues(typeof(ModType)))
-                dict[type] = r.NewValue?.CreateInstance().GetModsFor(type).ToList();
+            if (r.NewValue?.Available == true)
+            {
+                foreach (ModType type in Enum.GetValues(typeof(ModType)))
+                    dict[type] = r.NewValue.CreateInstance().GetModsFor(type).ToList();
+            }
 
             if (!SelectedMods.Disabled)
                 SelectedMods.Value = Array.Empty<Mod>();