.nonConsumablePurchase has never been purchased even when its purchased

## Platform
- [x] iOS
- [ ] macOS
- [ ] tvOS

### In-app purchase type
- [ ] Consumable
- [x] Non-consumable
- [ ] Auto-Renewable Subscription
- [ ] Non-Renewing Subscription

### Environment
- [x] Sandbox
- [x] Production

### Version
0.15.1 latest

### Related issues
`.nonConsumablePurchase` has never been purchased even when it's already been purchased. When clicked, the alert says its already purchased and would get it again for free. But the verified purchase says it is not purchased.

### What did you expect to happen
It should be reported purchased when calling `verifyPurchase(.nonConsumablePurchase)` after it is purchased.

### What happened instead
It reported never purchased when calling `verifyPurchase(.nonConsumablePurchase)` after it is purchased.