Dart: getters/setters: show read/write access

I see the "Show read/write access" has not effect, however it should show only getters or setters accordingly.

Is this a bug?

Sample code and screenshot:

class A {
  int get a => 1;
  set a(int i) {
    a = i;
  }
}
void main() {
  A().a = 1;
  print(A().a);
}