Fix loggernet receiver not properly setting its start flag

metobscommon/archive/loggernet_receiver.py

@@ -46,6 +46,7 @@ class LDMPReceiver(object):
     def start(self):
         if self._started:
             raise RuntimeError("Receiver already started")
+        self._started = True
 
         # kill thread event (if cleared, stop processing)
         self._run_event = mp.Event()