Delegate method `subscribedToChannel` not called when subscribed to private channel

[yu840915]

Currently, subscribedToChannel is called only when receiving the pusher_internal:subscription_succeeded with data
When subscribing to private channel, the event comes without data, so it won't pass this and notify the delegate

pusher-websocket-swift/Sources/Services/PusherConnection.swift

Lines 456 to 459 in d8d7a77

	guard event.data != nil else {
	Logger.shared.debug(for: .subscriptionSucceededNoDataInPayload)
	return
	}

But that was not the case 8 yr ago,

pusher-websocket-swift/Source/PusherConnection.swift

Lines 304 to 327 in d064eab

	chan.subscribed = true
	if let eData = json["data"] as? String {
	callGlobalCallbacks(forEvent: "pusher:subscription_succeeded", jsonObject: json)
	chan.handleEvent(name: "pusher:subscription_succeeded", data: eData)
	}
	if PusherChannelType.isPresenceChannel(name: channelName) {
	if let presChan = self.channels.find(name: channelName) as? PusherPresenceChannel {
	if let data = json["data"] as? String, let dataJSON = getPusherEventJSON(from: data) {
	if let presenceData = dataJSON["presence"] as? [String : AnyObject],
	let presenceHash = presenceData["hash"] as? [String : AnyObject] {
	presChan.addExistingMembers(memberHash: presenceHash)
	}
	}
	}
	}
	self.delegate?.subscribedToChannel?(name: channelName)
	while chan.unsentEvents.count > 0 {
	if let pusherEvent = chan.unsentEvents.popLast() {
	chan.trigger(eventName: pusherEvent.name, data: pusherEvent.data)
	}
	}

subscribedToChannel was called regardless whether the event comes with data.

Can we restore this behavior? Like calling subscribedToChannel before return on else branch of the guard clause.