From 2007815fa6b592984a64a6d3d978d41ae8f7347b Mon Sep 17 00:00:00 2001
From: dyphire <qimoge@gmail.com>
Date: Wed, 30 Jul 2025 22:15:37 +0800
Subject: Further refinement of BCP 47 language labeling support

---
 Jellyfin.Api/Controllers/ItemUpdateController.cs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'Jellyfin.Api/Controllers/ItemUpdateController.cs')

diff --git a/Jellyfin.Api/Controllers/ItemUpdateController.cs b/Jellyfin.Api/Controllers/ItemUpdateController.cs
index 50eeaeac6..e1d9b6bba 100644
--- a/Jellyfin.Api/Controllers/ItemUpdateController.cs
+++ b/Jellyfin.Api/Controllers/ItemUpdateController.cs
@@ -158,7 +158,10 @@ public class ItemUpdateController : BaseJellyfinApiController
             ParentalRatingOptions = _localizationManager.GetParentalRatings().ToList(),
             ExternalIdInfos = _providerManager.GetExternalIdInfos(item).ToArray(),
             Countries = _localizationManager.GetCountries().ToArray(),
-            Cultures = _localizationManager.GetCultures().ToArray()
+            Cultures = _localizationManager.GetCultures()
+                .DistinctBy(c => c.DisplayName, StringComparer.OrdinalIgnoreCase)
+                .OrderBy(c => c.DisplayName)
+                .ToArray()
         };
 
         if (!item.IsVirtualItem
-- 
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