copy and paste of scala file is missing bits

I have the following code:

// in file Globals.scala

object Globals {

    val contex = "hello Global"

}
// in file FirstClass.scala

class FirstClass {

  import Globals._

  println("in FirstClass")

}
// after paste in file SecondClass

class SecondClass {

   println("in FirstClass")

}

When I copy the file FirstClass.scala (right mouse click -> copy) then paste it as SecondClass.scala
the "import Globals._" is missing.
I was expecting a mirror copy of FirstClass. Is this normal?

Using Intellij idea 15 CE EAP on iMac osx Yosemite