GCS_MAVLink: only call message handler for our own messages

libraries/GCS_MAVLink/GCS_Common.cpp

@@ -908,9 +908,11 @@ GCS_MAVLINK::update(void (*run_cli)(AP_HAL::UARTDriver *))
             if (msg.msgid != MAVLINK_MSG_ID_RADIO && msg.msgid != MAVLINK_MSG_ID_RADIO_STATUS) {
                 mavlink_active |= (1U<<chan);
             }
+            if (!routing.check_and_forward(chan, &msg)) {
                 handleMessage(&msg);
             }
         }
+    }
 
     if (!waypoint_receiving) {
         return;