[]layaAir自定义组件设置默认参数无效

<?xml version="1.0" encoding="utf-8" ?>
<uiComp>
<ScaleButton className="laya.customUI.ScaleButton" inherit="Button" skinLabel="skin" defaultValue="label=''" icon="sbtn" resName="sbtn" group="公用,常用,宽高及位置" drag="3">
<prop name="scaleTime" tips="缩放使用时间" type="number" default="100" group="常用"/>
</ScaleButton>
<MenuBtn className="laya.customUI.MenuBtn" inherit="Component" skinLabel="skin" resName="mbtn" icon="mbtn" group="公用,常用,宽高及位置" drag="3">
<prop name="skin" tips="按钮皮肤" type="string" default="" group="常用"/>
<prop name="bgSkin" tips="按钮选中背景皮肤" type="string" default="gui/menuBtnBg.png" group="常用"/>
<prop name="noticeSkin" tips="按钮提示皮肤" type="string" default="gui/notice.png" group="常用"/>
</MenuBtn>
</uiComp>