Bad code green - incorrect parameter type (0.5.275)

In the following code, the definition for a is correct. The definition
for b is incorrect (error shown at the bottom). The Scala plugin marks
the whole thing green.

Is there an existing YouTrack entry for this?

Donald

class TestStuff  {
   val a = Map[String, AnyRef](("userName", "bob"))
   val b = Map[String, AnyRef]("userName", "bob")
}


error: type mismatch;
found   : java.lang.String("userName")
required: (String, AnyRef)
val b = Map[String, AnyRef]("userName", "bob")

error: type mismatch;
found   : java.lang.String("bob")
required: (String, AnyRef)
val b = Map[String, AnyRef]("userName", "bob")