From 282b220d9436105b441588d64b3a7b515a1550c1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bart=C5=82omiej=20Dach?= <dach.bartlomiej@gmail.com>
Date: Fri, 8 Apr 2022 00:16:25 +0200
Subject: [PATCH] Fix test failure due to checking incompaatibility of
 flattened multi mods

---
 osu.Game/Utils/ModUtils.cs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/osu.Game/Utils/ModUtils.cs b/osu.Game/Utils/ModUtils.cs
index ff8e04cc58..8df44216b6 100644
--- a/osu.Game/Utils/ModUtils.cs
+++ b/osu.Game/Utils/ModUtils.cs
@@ -115,7 +115,9 @@ namespace osu.Game.Utils
         {
             mods = mods.ToArray();
 
-            CheckCompatibleSet(mods, out invalidMods);
+            // exclude multi mods from compatibility checks.
+            // the loop below automatically marks all multi mods as not valid for gameplay anyway.
+            CheckCompatibleSet(mods.Where(m => !(m is MultiMod)), out invalidMods);
 
             foreach (var mod in mods)
             {