Issue has been redefined after investigation:
onBookmarkChange isn't triggered on sendRedirect with 7.0.6.1

Steps to reproduce:
Download attached files and change java classes packages to match project settings.
update init in page1.zul
update composer in target.zul

navigate to target.zul
>target.zul includes page1.zul
>page1.zul send a redirect instruction which change bookmark.
>on 7.0.5.2 and lower : triggers the onBookmarkChange listener and changed included page to page2.zul
>on 7.0.6 and higher: does not triggers onBookmarkChange and stay on page1

Initial description
h2. Steps to Reproduce
# run attached zhtml page with initiator

public class RedirectInit implements Initiator {

	@Override
	public void doInit(Page page, Map<String, Object> args) throws Exception {
		
		Executions.sendRedirect("target.zul");
	}
}

	<servlet>
		<description>ZK loader for ZUML pages</description>
		<servlet-name>zkLoader</servlet-name>
		<servlet-class>org.zkoss.zk.ui.http.DHtmlLayoutServlet</servlet-class>
		<init-param>
			<param-name>update-uri</param-name>
			<param-value>/zkau</param-value>
		</init-param>

		<load-on-startup>1</load-on-startup>
	</servlet>
	<servlet-mapping>
		<servlet-name>zkLoader</servlet-name>
		<url-pattern>*.zhtml</url-pattern>
	</servlet-mapping>