Merge pull request #4961 from crobibero/person-blurhash-null-ref

Fix potential null reference

Emby.Server.Implementations/Dto/DtoService.cs

@@ -582,9 +582,13 @@ namespace Emby.Server.Implementations.Dto
                 {
                     baseItemPerson.PrimaryImageTag = GetTagAndFillBlurhash(dto, entity, ImageType.Primary);
                     baseItemPerson.Id = entity.Id.ToString("N", CultureInfo.InvariantCulture);
+                    if (dto.ImageBlurHashes != null)
+                    {
                         // Only add BlurHash for the person's image.
                         baseItemPerson.ImageBlurHashes = new Dictionary<ImageType, Dictionary<string, string>>();
                         foreach (var (imageType, blurHash) in dto.ImageBlurHashes)
+                        {
+                            if (blurHash != null)
                             {
                                 baseItemPerson.ImageBlurHashes[imageType] = new Dictionary<string, string>();
                                 foreach (var (imageId, blurHashValue) in blurHash)
@@ -595,6 +599,8 @@ namespace Emby.Server.Implementations.Dto
                                     }
                                 }
                             }
+                        }
+                    }
 
                     list.Add(baseItemPerson);
                 }