Only apply series image aspect ratio if episode/season has no primary image

Emby.Server.Implementations/Dto/DtoService.cs

@@ -1138,9 +1138,12 @@ namespace Emby.Server.Implementations.Dto
                     if (episodeSeries != null)
                     {
                         dto.SeriesPrimaryImageTag = GetTagAndFillBlurhash(dto, episodeSeries, ImageType.Primary);
+                        if (!dto.ImageTags.ContainsKey(ImageType.Primary))
+                        {
                             AttachPrimaryImageAspectRatio(dto, episodeSeries);
                         }
                     }
+                }
 
                 if (options.ContainsField(ItemFields.SeriesStudio))
                 {
@@ -1185,10 +1188,13 @@ namespace Emby.Server.Implementations.Dto
                     if (series != null)
                     {
                         dto.SeriesPrimaryImageTag = GetTagAndFillBlurhash(dto, series, ImageType.Primary);
+                        if (!dto.ImageTags.ContainsKey(ImageType.Primary))
+                        {
                             AttachPrimaryImageAspectRatio(dto, series);
                         }
                     }
                 }
+            }
 
             if (item is MusicVideo musicVideo)
             {