steps to reproduce

1. load the attached file
2. click the "add" button 4 times

result

watch the console output, it always re-creates all visible Listitem again for each adding.

{"rs":[["setAttr",[{$u:'w3wP1'},"itemsInvalid_",[[
['zul.sel.Listitem','w3wPdf',{_loaded:true,_index:0},{},[
['zul.sel.Listcell','w3wP2i',

Unknown macro: {label}

,{},[]]]]],[
...
['zul.sel.Listitem','w3wPzh',{_loaded:true,_index:48},{},[
['zul.sel.Listcell','w3wPdj',

Unknown macro: {label}

,{},[]]]]],[
['zul.sel.Listitem','w3wP0i',{_loaded:true,_index:49},{},[
['zul.sel.Listcell','w3wPej',

Unknown macro: {label}

,{},[]]]]]]]],["setAttr",[{$u:'w3wP1'},"_offset",0]],["setAttr",[{$u:'w3wP1'},"totalSize",302]]],"rid":2}

expected

only create one item for newly added entry

debug info

• this issue doesn't happen when ROD is disabled.