SafeArea is ignored in showModalBottomSheet

[Peter Chovan]

I've just noticed that top safe area is being ignored in showModalBottomSheet when isScrollControlled is set to true. 

showModalBottomSheet(
  context: context,
  isScrollControlled: true,
  builder: (context) => MyModal(),
)

class MyModal extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return SafeArea(
      child: Column(
        children: <Widget>[
          SafeArea(child: Text('Modal')),
          Expanded(
              child: Container(
            color: Colors.red,
          ))
        ],
      ),
    );
  }
}