jeesite 显示select选中的文字会消失不见

<form:select path="shopGoodsPropertyOption.kxxid" class="input-medium" name="mcs" id="${shopGoodsPropertyOption.id}">
                    <form:option value="" label="${shopGoodsPropertyOption.kxxmc}"/>

                    <form:options items="${fns:getShopPropertyOptionList(shopGoodsPropertyOption.sxid.id)}" itemLabel="mc" itemValue="id" htmlEscape="false" />

</form:select>

lable:显示的selected的名字，在lable里面写el表达式就好了