From 76670a8faa9c964920e4a6277f4f2dd0bad4281b Mon Sep 17 00:00:00 2001
From: Dean Herbert <pe@ppy.sh>
Date: Fri, 7 Jan 2022 23:56:04 +0900
Subject: [PATCH] Fix `BeatmapDifficultyCache` not working with detached
 beatmaps

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

diff --git a/osu.Game/Beatmaps/BeatmapDifficultyCache.cs b/osu.Game/Beatmaps/BeatmapDifficultyCache.cs
index f760c25170..981120c5a8 100644
--- a/osu.Game/Beatmaps/BeatmapDifficultyCache.cs
+++ b/osu.Game/Beatmaps/BeatmapDifficultyCache.cs
@@ -136,7 +136,7 @@ namespace osu.Game.Beatmaps
             var localRulesetInfo = rulesetInfo as RulesetInfo;
 
             // Difficulty can only be computed if the beatmap and ruleset are locally available.
-            if (localBeatmapInfo?.IsManaged != true || localRulesetInfo == null)
+            if (localBeatmapInfo?.Ruleset == null || localRulesetInfo == null)
             {
                 // If not, fall back to the existing star difficulty (e.g. from an online source).
                 return Task.FromResult<StarDifficulty?>(new StarDifficulty(beatmapInfo.StarRating, (beatmapInfo as IBeatmapOnlineInfo)?.MaxCombo ?? 0));