FrappyNode.target must be set after stop but before restart

devices.py

@@ -790,7 +790,6 @@ class FrappyNode(SecNodeDevice, Moveable):
             if cfg is None:
                 self.log.error('can not restart - previous cfg unknown')
                 return
-        self._setROParam('target', cfg)
         ins = config.instrument
         fm = FrappyManager()
         info = fm.get_ins_info(ins)
@@ -801,6 +800,7 @@ class FrappyNode(SecNodeDevice, Moveable):
             self._disconnect()
             session.log.info('stop frappy_%s %r %r', self.service, running_cfg, cfg)
             fm.do_stop(ins, self.service)
+        self._setROParam('target', cfg)
         try:
             is_cfg = cfg and ':' not in cfg
             if is_cfg: