From c22bffaa012ed7750c011fc3796e9ef6d997786b Mon Sep 17 00:00:00 2001
From: Dean Herbert <pe@ppy.sh>
Date: Wed, 8 Jun 2022 19:30:18 +0900
Subject: [PATCH] Fix filter failure when no collection is selected

---
 osu.Game/Overlays/Music/Playlist.cs | 29 +++++++++++++++++------------
 1 file changed, 17 insertions(+), 12 deletions(-)

diff --git a/osu.Game/Overlays/Music/Playlist.cs b/osu.Game/Overlays/Music/Playlist.cs
index 4653a65041..1d8163b57b 100644
--- a/osu.Game/Overlays/Music/Playlist.cs
+++ b/osu.Game/Overlays/Music/Playlist.cs
@@ -31,20 +31,25 @@ namespace osu.Game.Overlays.Music
 
             foreach (var item in items.OfType<PlaylistItem>())
             {
-                var beatmapHashes = item.Model.Value.Beatmaps.Select(b => b.MD5Hash);
-
-                bool contained = false;
-
-                foreach (string hash in beatmapHashes)
+                if (criteria.Collection == null)
+                    item.InSelectedCollection = true;
+                else
                 {
-                    if (criteria.Collection?.Beatmaps.Contains(hash) == true)
-                    {
-                        contained = true;
-                        break;
-                    }
-                }
+                    var beatmapHashes = item.Model.Value.Beatmaps.Select(b => b.MD5Hash);
 
-                item.InSelectedCollection = contained;
+                    bool contained = false;
+
+                    foreach (string hash in beatmapHashes)
+                    {
+                        if (criteria.Collection?.Beatmaps.Contains(hash) == true)
+                        {
+                            contained = true;
+                            break;
+                        }
+                    }
+
+                    item.InSelectedCollection = contained;
+                }
             }
 
             items.SearchTerm = criteria.SearchText;