Fix bug caused by workaround for watchOS sandbox receipts being stored at wrong path

[dylanmaryk]

The fix in #263 that was discussed in #207 now itself causes a bug when using sandbox on watchOS 7 as of beta 7. The bug that this workaround was added for appears to no longer occur, as when I remove the workaround, the receipt data is successfully retrieved.

DEBUG: Loaded receipt from file:///private/var/mobile/Containers/Data/PluginKitPlugin/DC8F7577-9BE0-4A54-81CE-0CECB386EC5C/StoreKit/sandboxReceipt
DEBUG: POST /v1/receipts
DEBUG: POST /v1/receipts 200

However, when the workaround is left in, retrieving the receipt data fails.

DEBUG: Loaded receipt from file:/private/var/mobile/Containers/Data/PluginKitPlugin/D857C0D0-2739-4D9B-A011-144948BC8274/StoreKit/receipt
DEBUG: Receipt empty, fetching
DEBUG: GET /v1/subscribers/$RCAnonymousID:d9e6c1c36cff458e9375cb846413128e 200
DEBUG: Loaded receipt from file:/private/var/mobile/Containers/Data/PluginKitPlugin/D857C0D0-2739-4D9B-A011-144948BC8274/StoreKit/receipt
INFO: Unable to load receipt, ensure you are logged in to the correct iTunes account.
ERROR: The receipt is missing.

Therefore, I have added a check for the watchOS version. Only if it is below 7.0.0 will the workaround be applied. Otherwise, the workaround will not be used.

[aboedo]

Hi! Thanks so much for reporting and for posting the fix 🙌 🎉 ! I'm glad to see this finally got fixed in watchOS.