Click outside a modal window over Slider panel calls 'SliderPanelServerRpc.click()'

[SimonC-24]

Click outside a modal window, which is over Slider panel calls 'SliderPanelServerRpc.click()' and therefore closes slider panel.

I opened the same modal window from a different place in the app and clicking outside that modal window doesn't fire any event.

Testing on vaadin-server-7.7.5.jar and vaadin-sliderpanel-1.4.2.jar