Add TODOs for identify

Author: thomaseizinger

protocols/identify/src/handler.rs

@@ -345,8 +345,12 @@ impl ConnectionHandler for Handler {
                 self.on_dial_upgrade_error(dial_upgrade_error)
             }
             ConnectionEvent::AddressChange(_)
-            | ConnectionEvent::ListenUpgradeError(_)
-            | ConnectionEvent::ProtocolsChange(_) => {}
+            | ConnectionEvent::ListenUpgradeError(_) => {}
+            ConnectionEvent::ProtocolsChange(_) => {
+                // TODO:
+                // 1. push protocol changes
+                // 2. store protocols locally and use it to answer next identify request
+            }
         }
     }
 }