Otherwise, I get this, inexplicably:

```scala
[error] .../core/src/main/scala/scalaz/LazyOptionT.scala:116: value apply is not a member of => A => B
[error]     LazyOptionT(F.bind(f.run)(_ fold (ff => F.map(fa.run)(_ map (ff(_))),
[error]                                                                  ^
```

@retronym any thoughts?