[TIMOB-19426] Windows: animate doesn't work when duration is short

var win = Ti.UI.createWindow({ backgroundColor: 'blue' });

var container = Ti.UI.createView({
    top: -70,
    left: 0,
    width: Ti.UI.FILL,
    height: Ti.UI.FILL
});
win.add(container);

var search_textfield = Ti.UI.createTextField({
    top: 10,
    left: 10,
    right: 10,
    height: 40
});
container.add(search_textfield);

win.addEventListener('open', function () {
    setTimeout(function () {
        container.animate({
            top: 0,
            duration: 250 /* works when duration: 1000 */
        });
    }, 3000);
});
win.open();