Window's endFrontAction called inappropriately when user clicks on title bar

[jamshark70]

(
var w = Window("click my title bar", Rect.aboutPoint(Window.screenBounds.center, 100, 60))
.endFrontAction_({ w.endFrontAction_(nil).close })
.front;
)

Expected: The window is still in front, so endFrontAction should not fire and the window should not close.

Actual: The window closes.

(Of course, "click my title bar" means what it says. It doesn't mean "click the close box in my title bar.")

Ubuntu 12.04, Gnome 3, Qt 5.4.1.

[telephon]

Same on OSX 10.10

[redFrik]

i can't reproduce. seems to be fixed here (sc3.10.2, macOS 10.12.6)
endFrontAction does not fire when i click the bar - only when i click outside the window disappears - as expected.