setLocale() for numeric inputboxes e.g. Decimalbox, Doublebox, Intbox does not work.

 
<zk>
    <grid width="600px">
        <rows>
            <row>
                <label value="Decimalbox" />
                <decimalbox locale="en_US" format="#,##0.##" value="1234567890.09" width="200px" />
            </row>
            <row>
                <label value="Integerbox" />
                <intbox locale="en_US" format="#,##0" value="1234567890" width="200px" />
            </row>
            <row>
                <label value="Doublebox" />
                <doublebox locale="en_US" format="#,##0.##" value="1234567890.09" width="200px" />
            </row>
        </rows>
    </grid>
</zk>