Backport pull request #11933 from jellyfin/release-10.9.z

Check trailer distinction by URL

Original-merge: b1a5fe2f55

Merged-by: nielsvanvelzen <nielsvanvelzen@users.noreply.github.com>

Backported-by: Joshua M. Boniface <joshua@boniface.me>

MediaBrowser.Providers/Manager/MetadataService.cs

@@ -1080,7 +1080,7 @@ namespace MediaBrowser.Providers.Manager
             }
             else
             {
-                target.RemoteTrailers = target.RemoteTrailers.Concat(source.RemoteTrailers).Distinct().ToArray();
+                target.RemoteTrailers = target.RemoteTrailers.Concat(source.RemoteTrailers).DistinctBy(t => t.Url).ToArray();
             }
 
             MergeAlbumArtist(source, target, replaceData);