Steps to Reproduce

run the zul file

<zk>
	<navbar onSelect="Clients.log(event.toString())">
		<navitem id="ni1" label="item1"/>
		<navitem id="ni2" label="item2"/>
	</navbar>
	<button label="select item1" onClick="ni1.setSelected(true)"/>
	<button label="select item2" onClick="ni2.setSelected(true)"/>
</zk>
click either of the buttons to change the current selected navitem at server side

Current Result

observing the network traffic an unnecessary onSelect event is sent to the server side (since the update was triggered from server side it's not necessary to fire the event again)

Expected Result

no additional onSelect event when the selected navitem was changed at server side.

Debug Info

At the same time the event listener doesn't trigger - producing no log output as when clicking a navitem directly.