Cannot form weak reference to instance of class KoreBotSDK.RTMTimer

[jserranoglobant]

Issue found on iOS-Kore-SDK tag version 0.16

When the disconnect method of BotClient is called continuously the RTMTimer is generating a crash. The RTMPersistenceConnection is deallocating the timerSource and after that in the deinit, the timer.setEventHandler {} is accessing a bad reference because the timer is nil. The log error message from Xcode console is: Cannot form weak reference to instance (0x1c524bca0) of class KoreBotSDK.RTMTimer. It is possible that this object was over-released, or is in the process of deallocation.

Please see the following evidence:

BotClient.swift

RTMPersistenceConnection.swift

RTMPersistenceConnection.swift - RTMTimer

RTMPersistenceConnection.swift - RTMTimer

This is our crash report from Crashlytics: