Should Reachability be checking against previousFlags?

[andrewkboyd]

Currently I am using Reachability for a Mac project. While at work, I am connected to a WiFi network, and sometimes use Ethernet as well (two different networks). When I unplug from Ethernet (with a Wi-Fi connection in tact), Reachability does not call my callback because it is checking the 'previousFlags' variable guard previousFlags != flags else { return } in the reachabilityChanged method.

Ethernet is the primary interface when connected, and Wi-Fi is secondary. This could be more of a scope question, as technically the network is still reachable and a network connection exists, BUT the network I am using to access the Internet changed.

Should the app get notified in this event or not? Maybe the check was added to solve a different issue?