[TIMOB-6857] Android: UI - the back hardware button triggers optionDialog's click event

var win = Ti.UI.createWindow({
    modal: true,
    backgroundColor: '#000'
});
 
var button = Ti.UI.createButton({
    title: 'Open dialog'
});
 
button.addEventListener('click', function() {
 
    var dialog = Ti.UI.createOptionDialog({
        options: ['Option 1', 'Option 2', 'Option 3'],
        title: 'Options'
    });
 
    dialog.addEventListener('click', function(e) {
        Ti.API.info('Dialog click event!');
        Ti.API.debug(e);
    });
 
    dialog.show();
});
 
win.add(button);
 
win.open();

Dialog click event!
{"cancel":false,"index":-268435457,"source":{"size":{"height":0,"width":0},"children":[],"height":0,"width":0,"center":{"y":0,"x":0},"options":["Option 1","Option 2","Option 3"],"title":"Options","keepScreenOn":false,"_events":{}},"button":true,"type":"click"}