<zk>
	<window >
		<button label="append" onClick="append()">
			<attribute name="onClick"><![CDATA[
				include.setSrc(null);
				include.setSrc("test2.zul?aa=bb");
				//include.setSrc("test2.zul"); without param, works fine
			]]></attribute>
		</button>
		<include id="include" src=""/>
	</window>
</zk>

<zk>
	<zscript><![CDATA[
		class Controller extends org.zkoss.zk.ui.util.GenericForwardComposer {
			public void doAfterCompose(Component comp) throws Exception {
				super.doAfterCompose(comp);
				Clients.showNotification("doAfterCompose");
				System.out.println("in");
			}
		}
	]]></zscript>
	<window apply="Controller" />
</zk>