Adding Korean language tests Addresses #6393

src/Jellyfin.Extensions/StringExtensions.cs

@@ -36,7 +36,8 @@ namespace Jellyfin.Extensions
                 }
             }
 
-            return withoutDiactritics.ToString().Normalize(NormalizationForm.FormC);
+            string normalizedText = withoutDiactritics.ToString().Normalize(NormalizationForm.FormC);
+            return normalizedText;
         }
 
         /// <summary>

tests/Jellyfin.Extensions.Tests/StringExtensionsTests.cs

@@ -13,6 +13,8 @@ namespace Jellyfin.Extensions.Tests
         [InlineData("Jönssonligan", "Jonssonligan")] // Issue #7484
         [InlineData("Kieślowski", "Kieslowski")] // Issue #7450
         [InlineData("Cidadão Kane", "Cidadao Kane")] // Issue #7560
+        [InlineData("운명처럼 널 사랑해", "운명처럼 널 사랑해")] // Issue #6393 (Korean language support)
+        [InlineData("애타는 로맨스", "애타는 로맨스")] // Issue #6393
         public void RemoveDiacritics_ValidInput_Corrects(string input, string expectedResult)
         {
             string result = input.RemoveDiacritics();
@@ -27,6 +29,8 @@ namespace Jellyfin.Extensions.Tests
         [InlineData("Jönssonligan", true)] // Issue #7484
         [InlineData("Kieślowski", true)] // Issue #7450
         [InlineData("Cidadão Kane", true)] // Issue #7560
+        [InlineData("운명처럼 널 사랑해", false)] // Issue #6393 (Korean language support)
+        [InlineData("애타는 로맨스", false)] // Issue #6393
         public void HasDiacritics_ValidInput_Corrects(string input, bool expectedResult)
         {
             bool result = input.HasDiacritics();