Prevent line wrapping and identation when using a lambda arguments

There is a recent (IDEA 13.1?) change in Scala style formatting which drives me nuts. In short, when I write this:

  foo { implicit tx =>
    1 + 1
  }


it soon gets reformatted as:

  foo {
    implicit tx =>
      1 + 1
  }


How can I teach IDEA to respect to upper form?

Another example. This is what I want:

        bodies.flatMap { body =>
          foo(body, head)
        }

This is what I get

        bodies.flatMap {
          body =>
            foo(body, head)
        }



Thanks!