初回でnamed.scope(0).blimp(0)がundefined

```
hwnd = nmdmgr.materialize(shell, balloon)
named = nmdmgr.named(hwnd)
named.scope(0).surface(0)
named.scope(0).blimp(0).talk("hoge) # -> error
```

初回でnamed.scope(0).blimp(0)がundefined
