for idx, field := range rel.FieldSchema.PrimaryFields {
								primaryValues[idx], _ = field.ValueOf(association.DB.Statement.Context, fieldValue.Index(i))
							}

							if _, ok := relValuesMap[utils.ToStringKey(primaryValues...)]; !ok {
								validFieldValues = reflect.Append(validFieldValues, fieldValue.Index(i))
							}
						}