From 18cd634ec8316fe5978d7ad3867de66b85cd5fba Mon Sep 17 00:00:00 2001
From: Mister Rajoy <danielarezdiaz@gmail.com>
Date: Sun, 28 Feb 2021 23:03:28 +0100
Subject: [PATCH] Fix duplicated movies when group movies into collections is
 enabled

---
 .../Collections/CollectionManager.cs              | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/Emby.Server.Implementations/Collections/CollectionManager.cs b/Emby.Server.Implementations/Collections/CollectionManager.cs
index 1ab2bdfbe8..449f8872fd 100644
--- a/Emby.Server.Implementations/Collections/CollectionManager.cs
+++ b/Emby.Server.Implementations/Collections/CollectionManager.cs
@@ -344,7 +344,20 @@ namespace Emby.Server.Implementations.Collections
                     }
                     else
                     {
-                        results[item.Id] = item;
+                        var alreadyInResults = false;
+                        foreach (var child in item.GetMediaSources(true))
+                        {
+
+                            if (results.ContainsKey(Guid.Parse(child.Id)))
+                            {
+                                alreadyInResults = true;
+                            }
+                        }
+                        if (!alreadyInResults)
+                        {
+
+                            results[item.Id] = item;
+                        }
                     }
                 }
             }