Adists: Fix missing and update outputrk for scenario.

src/Model/BoundaryConditionsAdisTS/BoundaryConditionAdisTS.py

@@ -152,6 +152,9 @@ class BoundaryConditionAdisTS(SQLSubModel):
         scenario = data["scenario"]
         loaded = data['loaded_pid']
 
+        if scenario is None:
+            return new
+
         table = execute(
             "SELECT pamhyr_id, pollutant, type, node, scenario " +
             "FROM boundary_condition_adists " +