add comment about proxy side effect

lib/interface.py

@@ -96,6 +96,7 @@ class TcpInterface(threading.Thread):
         if self.proxy:
             self.proxy_mode = proxy_modes.index(self.proxy["mode"]) + 1
             socks.setdefaultproxy(self.proxy_mode, self.proxy["host"], int(self.proxy["port"]))
+            # fixme: side effect, client needs restart in order to get out of proxy mode
             socket.socket = socks.socksocket
             # prevent dns leaks, see http://stackoverflow.com/questions/13184205/dns-over-proxy
             def getaddrinfo(*args):