master/db: exclude Notifier attributes from kernel attr init

artiq/master/db.py

@@ -9,7 +9,7 @@ class ResultDB:
         self.realtime_data = Notifier({x: [] for x in realtime_results})
         self.data = Notifier(dict())
 
-    def request(self, name):
+    def _request(self, name):
         try:
             return self.realtime_data[name]
         except KeyError:
@@ -19,6 +19,11 @@ class ResultDB:
                 self.data[name] = []
                 return self.data[name]
 
+    def request(self, name):
+        r = self._request(name)
+        r.kernel_attr_init = False
+        return r
+
     def set(self, name, value):
         if name in self.realtime_data.read:
             self.realtime_data[name] = value