Is Family Sharing included in Transaction.currentEntitlements?

We have a user that's shared screenshots indicating that they're the recipient of a subscription to our app through Family Sharing, but when we look for the transaction in Transaction.currentEntitlements there's nothing there, even after calling AppStore.sync. Should we expect to see a transaction in current entitlements? How can we determine whether it's our bug or Apple's?

Is Family Sharing included in Transaction.currentEntitlements?
 
 
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