When attempting to implement the NEProvider overrides for starting & stopping the tunnel on device sleep and wake, I noticed that sending the StopRequest to the .dylib causes the entire NE process to SIGABRT. We'll need to fix this if we'd like the VPN to start and stop itself on sleep and wake.

For example, this can be reproduced by modifying the sleep handler:

override func sleep(completionHandler: @escaping -> Void) {
    let completionhandler = CompletionWrapper(completionHandler)
    Task {
         try await manager?.stopVPN()
         completionHandler()
    }
}

Then starting the VPN, and putting the device to sleep. After waking, you'll see an internal error indicating a crash of the NE.

We currently only send the StopRequest when shutting down the tunnel, so this crash can't happen with normal use of the app.