Steps to Reproduce

run the attached example focus-rod.zul
click the button

Actual Result

textbox in initial listitem is focussed (OK)
when new listitem is added the textbox is not focussed

Expected Result

when new listitem is added the textbox should also be focussed

Debug Info

this works as expected when ROD is disabled

<custom-attributes org.zkoss.zul.listbox.rod="false"/>

Root Cause

when calling self.focus() the AuFocus response object is correctly added to the reponses
https://github.com/zkoss/zk/blob/master/zk/src/org/zkoss/zk/ui/impl/UiVisualizer.java#L421

when rendering the response it get's removed during doCrop()
https://github.com/zkoss/zk/blob/master/zk/src/org/zkoss/zk/ui/impl/UiVisualizer.java#L654

Workaround

1. disable ROD
2. with ROD enabled: focussing the textbox directly using JS will prevent the response from being filtered out

Clients.evalJavaScript("zk.$('#" + self.getUuid() + "').focus();");