ListGrid: fetching data on selection changes prevents recorddoubleclick notification

[d.cavestro]

I have a listgrid that needs to:
* refresh a toolbar when the selection changes
* show a dialog on double click

So I set up a RecordDoubleClickHandler and SelectionChangedHandler. The latter triggers a data fetch, cause refreshing the toolbar implies fetching some data from server (using a datasource different from the one used by the list grid). The grid has a single row selection mode.

When I double click on a row already selected, it works.
When I double click on a row that was not selected (hence firing a selectionchanged evet) the recorddoubleclick event is not notified.
What's wrong with my code? Using SelectionUpdatedHandler make things worse.
Is there any known workaround?

Here you are a snippet:

    ...
    final ListGrid grid = new ListGrid ();
    grid.addRecordDoubleClickHandler (new RecordDoubleClickHandler() {
        
        @Override
        public void onRecordDoubleClick (RecordDoubleClickEvent event) {
            GWT.log ("double click");
            SC.say ("Double click!");//DOES NOT APPEAR DOUBLE-CLICKING ON A UNSELECTED ROW
        }
    });
    grid.addSelectionChangedHandler (new SelectionChangedHandler() {
        @Override
        public void onSelectionChanged (SelectionEvent event) {
            fetchData ();
        }
    });
    ...

private void fetchData () {
    otherDataSource.invalidateCache ();
    otherDataSource.fetchData (new Criteria (), new DSCallback() {
        
        @Override
        public void execute (DSResponse response, Object rawData, DSRequest request) {
            GWT.log ("data fetched");
        }
    });
}

I've attached a test case. If needed I can produce a complete standalone test case based on https://github.com/davidecavestro/smartgwt-test-case

Reproduced on SmartGWT 3.0 and its latest nightly build: SmartClient Version: v8.2p_2012-10-16/LGPL Development Only (built 2012-10-16)

[Isomorphic]

You are doing blocking comm on the first click, so you block the second click. Set showPrompt:false via the dsRequest argument of fetchData() to correct.