I've found a strange behavior, explained it here: http://stackoverflow.com/questions/39569936/scala-object-initialization-bug

Here is the small example

{code}sealed case class SomeCode(
id: String,
legend: String = "sadsa")

object SomeCode {
println("begin object init")
object First extends SomeCode(id = "First") {println("initializing First")}
object Second extends SomeCode(id = "Second") {println("initializing Second")}
println(SomeCode.First)
}

object Main {

def main(args: Array[String]): Unit = {
SomeCode.First
}

}
{code}

It prints: {code}begin object init
null
initializing First{code}
But if we change First object to this one: {code}object First extends SomeCode(id = "First", "test") {println("initializing First")}{code}
Then the output will be: {code}initializing First{code}

It is ok behavior and I don't understand something, or it is a bug?