<zk>
    <label multiline="true">
    Open the combobox twice, it is bug that the popup position is incorrect.
    </label>
    <zscript>
    List list = new ArrayList();
        for (int i = 0; i < 100; i++) {
            list.add("item " + i);
    }
    ListModel model = new ListModelList(list);
    </zscript>
    <combobox model="${model}"
        style="position: absolute; top: 183.60000610351562px; left: 222.39999389648438px" />
</zk>