Fix artist duplicates

2 files changed, 9 insertions, 4 deletions

diff --git a/Jellyfin.Server.Implementations/Item/BaseItemRepository.TranslateQuery.cs b/Jellyfin.Server.Implementations/Item/BaseItemRepository.TranslateQuery.cs
index 0abe981af8..59e61cfd65 100644
--- a/Jellyfin.Server.Implementations/Item/BaseItemRepository.TranslateQuery.cs
+++ b/Jellyfin.Server.Implementations/Item/BaseItemRepository.TranslateQuery.cs
@@ -390,7 +390,8 @@ public sealed partial class BaseItemRepository
         {
             if (filter.UseRawName == true)
             {
-                baseQuery = baseQuery.Where(e => e.Name == filter.Name);
+                var nameLower = filter.Name.ToLowerInvariant();
+                baseQuery = baseQuery.Where(e => e.Name!.ToLower() == nameLower);
             }
             else
             {
diff --git a/Jellyfin.Server.Implementations/Item/LinkedChildrenService.cs b/Jellyfin.Server.Implementations/Item/LinkedChildrenService.cs
index 415510b2f4..9e11b6be62 100644
--- a/Jellyfin.Server.Implementations/Item/LinkedChildrenService.cs
+++ b/Jellyfin.Server.Implementations/Item/LinkedChildrenService.cs
@@ -1,4 +1,6 @@
 #pragma warning disable RS0030 // Do not use banned APIs
+#pragma warning disable CA1304 // Specify CultureInfo
+#pragma warning disable CA1311 // Specify a culture or use an invariant version
 
 using System;
 using System.Collections.Generic;
@@ -62,17 +64,19 @@ public class LinkedChildrenService : ILinkedChildrenService
     {
         using var dbContext = _dbProvider.CreateDbContext();
 
+        var lowerNames = artistNames.Select(n => n.ToLowerInvariant()).ToArray();
         var artists = dbContext.BaseItems
             .AsNoTracking()
             .Where(e => e.Type == _itemTypeLookup.BaseItemKindNames[BaseItemKind.MusicArtist]!)
-            .Where(e => artistNames.Contains(e.Name))
+            .Where(e => lowerNames.Contains(e.Name!.ToLower()))
             .ToArray();
 
         var lookup = artists
-            .GroupBy(e => e.Name!)
+            .GroupBy(e => e.Name!, StringComparer.OrdinalIgnoreCase)
             .ToDictionary(
                 g => g.Key,
-                g => g.Select(f => _queryHelpers.DeserializeBaseItem(f)).Where(dto => dto is not null).Cast<MusicArtist>().ToArray());
+                g => g.Select(f => _queryHelpers.DeserializeBaseItem(f)).Where(dto => dto is not null).Cast<MusicArtist>().ToArray(),
+                StringComparer.OrdinalIgnoreCase);
 
         var result = new Dictionary<string, MusicArtist[]>(artistNames.Count);
         foreach (var name in artistNames)