Steps to Reproduce

    <zscript><![CDATA[
        ListModelList dataModel = new ListModelList();

    public void load(OpenEvent e){
        if (e.isOpen() && dataModel.size()==0){
            dataModel.add("item1");
            dataModel.add("item2");
        }
    }
    public void load(){
        if (dataModel.size()==0){
            dataModel.add("item1");
            dataModel.add("item2");
            }
    }
    ]]></zscript>
    <searchbox model="${dataModel}"  onOpen="load(event)"/>
    <searchbox model="${dataModel}"  onSearching="load()"/>

1. open the first searchbox,
or type "item" in the 2nd searchbox

Current Result

For both cases, no item rendered

Expected Result

2 items rendered

Debug Information

• The use case is: an app developer wants to lazily load data items until a user opens a searchbox since the data items are huge. This usage is quite resonable.
• the au response contains commands to update items, but no item is rendered.

  {"rs":[["invoke",[{$u:'bIyP2'},"_updateItems",[{"content":"item1","id":"bIyP4"}],true,1,0,0]],["invoke",[{$u:'bIyP3'},"_updateItems",[{"content":"item1","id":"bIyP5"}],true,1,0,0]],["invoke",[{$u:'bIyP2'},"_updateItems",[{"content":"item2","id":"bIyP6"}],true,1,1,1]],["invoke",[{$u:'bIyP3'},"_updateItems",[{"content":"item2","id":"bIyP7"}],true,1,1,1]]],"rid":1}
  

Workaround

js patch