Bindings.isEmpty( fooProperty() ) works with: pr...

# tornadofx

[gtnarg]

Bindings.isEmpty( fooProperty() )

works with:

private val fooProperty = SimpleStringProperty()
fun fooProperty() = fooProperty
var foo by fooProperty

but not:

var foo by property<String>()
fun fooProperty() = getProperty(ClassName::foo)

The former is an ObservableStringValue and the other is ObjectProperty<String>

Is this an expected shortcoming of the getProperty(ClassName::foo) syntax or is there a way around this?