[Bug]: PushSubscriptionStateChanged event not being fired on Android

[berkayk]

What happened?

I am trying to get subscribed users' userId from the PushSubscriptionStateChanged action.

OneSignal.Default.Initialize(OneSignalAppId);
OneSignal.Default.PushSubscriptionStateChanged += OnPushSubscriptionStateChanged;

On iOS everything is fine but on Android, this action is not being fired.

On iOS,

private void OnPushSubscriptionStateChanged(PushSubscriptionState current, PushSubscriptionState previous) {
            if (current.isSubscribed) {
                Debug.Log(current.userId);  // <---    I am able to get users' id here
            }
        }

Why isn't this event being fired on Android?

If I do the following (wait for 5 seconds), I am able to get userId

OneSignal.Default.Initialize(OneSignalAppId);
OneSignal.Default.PushSubscriptionStateChanged += OnPushSubscriptionStateChanged;
await Task.Delay(5000);
Debug.Log("userId = " + OneSignal.Default.PushSubscriptionState.userId);    // This works.

Steps to reproduce?

1. Initialize OneSignal with `OneSignal.Default.Initialize(OneSignalAppId);`
2. Register for PushSubscriptionStateChanged event with `OneSignal.Default.PushSubscriptionStateChanged += OnPushSubscriptionStateChanged;`
3. `OnPushSubscriptionStateChanged` handler is not being called on Android (works on iOS)

What did you expect to happen?

I expected the app to work on the same way like it works on iOS.

Unity version

2022.3.1f1

OneSignal Unity SDK version

3.0.9

Platform

Android

Relevant log output

No response

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