Calendar's backgroundClick & eventClick behaviour

[newf]

Hello.
I'm using SmartClient 8.3 nightly build and i'm trying to override default editing event dialog form.
But i suppose, backgroundClick returning false blocks further eventClick calling.
testcase: in Simple Calendar example let's use this code:

isc.Calendar.create({
    ID: "eventCalendar", 
    data: eventData,
    backgroundClick: function (startDate, endDate) {
        modalCreateNew.show();
        return false;
    },
    eventClick:function (event, viewName) {
        modalEdit.show();
        return false;
    }
});

isc.Window.create({
    ID: "modalCreateNew",
    title: "Create new event",
    autoSize:true,
    autoCenter: true,
    isModal: true,
    showModalMask: true,
    autoDraw: false,
    items: [
        isc.DynamicForm.create({
            autoDraw: false,
            height: 48,
            padding:4,
            fields: [
                {name: "field11", type: "select", valueMap: ["foo", "bar"]},
                {name: "field21", type: "date"},
                {type: "button", title: "Done",
                 click: "modalCreateNew.hide();" }
            ]
        })
    ]
});

isc.Window.create({
    ID: "modalEdit",
    title: "Editing event",
    autoSize:true,
    autoCenter: true,
    isModal: true,
    showModalMask: true,
    autoDraw: false,
    items: [
        isc.DynamicForm.create({
            autoDraw: false,
            height: 48,
            padding:4,
            fields: [
                {name: "field12", type: "select", valueMap: ["foo", "bar"]},
                {name: "field22", type: "date"},
                {type: "button", title: "Done",
                 click: "modalEdit.hide();" }
            ]
        })
    ]
});

so if we click first on event - ok, form modalEdit is showing. If we click on other space - ok, modalCreateNew form is showing, and after that we can click everywhere (on existing events too) - only modalCreateNew will be shown.
Is it a bug or i don't understand correct behaviour?

Nicholas

[newf]

well, is it a bug? I suppose, it can be verified quickly with my testcase.

[newf]

Well, dear Isomorphic, please, check my question?
Thank you.

[lynvcode]

Smartclient v8.3p_2013-01-11
All I can say, I tried overriding the backgroundClick and I was getting the same behavior.
Thanks for the solution.