在 iTunes 收据的服务器端验证过程中，我们遇到了一些收据，我们收到了空的“in_app”购买。空的 in_app 数组表示 StoreKit 尚未记录该用户的任何交易。为什么会发生这种情况？我们是否有任何解决方案来处理这种 in_app 空收据。
{
"status": 0,
"environment": "Production",
"receipt": {
"receipt_type": "Production",
"adam_id": *******,
"app_item_id": *******,
"bundle_id": "com.***************",
"application_version": "0",
"download_id": 85015170192768,
"version_external_identifier": 816491596,
"receipt_creation_date": "2016-03-10 16:29:03 Etc/GMT",
"receipt_creation_date_ms": "1457627343000",
"receipt_creation_date_pst": "2016-03-10 08:29:03 America/Los_Angeles",
"request_date": "2016-03-11 05:24:19 Etc/GMT",
"request_date_ms": "1457673859599",
"request_date_pst": "2016-03-10 21:24:19 America/Los_Angeles",
"original_purchase_date": "2015-12-27 15:37:38 Etc/GMT",
"original_purchase_date_ms": "1451230658000",
"original_purchase_date_pst": "2015-12-27 07:37:38 America/Los_Angeles",
"original_application_version": "1",
"in_app": []
}
}