firestore throws error after cancelling stream and auth.signout

[KevMCarp]

Currently in my app, when a user logs out I always get the error:
[cloud_firestore/permission-denied] Missing or insufficient permissions.

I have ensured that all my streams are cancelled before calling signOut() but I still get an error from the stream after the stream has been cancelled.

I'm just trying to gauge if this is something I've gotten wrong before a file a bug.

This is the structure I currently use in my app.

Create the stream.

 Stream<QuerySnapshot<Map<String, dynamic>>> get someDataStream =>
      FirebaseFirestore.instance
          .collection('data')
          .snapshots()
          .handleError((e) => print('someData: $e'));

Inside my state I have the following:

  late StreamSubscription subscription;

  void init() {
    subscription = someDataStream.listen((event)=>
      print(event)
    );
  }

void dispose() async {
      await subscription.cancel();
      print('cancelled');
    }

I can verify that dispose is being called. However, after signing out, an error is thrown.

Initially I thought I wasn't disposing of a streamSubscription somewhere in the app, however after adding handleError to the stream I can see it comes from a stream that I had closed as it will print
someData: [cloud_firestore/permission-denied] Missing or insufficient permissions.