HarmonyOS RelativeContainer中alignRules的bias属性设置无效

参考demo：

@Entry
@Component
struct Index {
  build() {
    Row() {
      RelativeContainer() {
        Row().width(100).height(100)
          .backgroundColor("#FF3333")
          .alignRules({
            top: {anchor: "__container__", align: VerticalAlign.Top},
            bottom : {anchor : "__container__", align : VerticalAlign.Bottom},
            left: {anchor: "__container__", align: HorizontalAlign.Start},
            right : {anchor : "__container__", align: HorizontalAlign.End},
            bias : {vertical : 0.3}
          })
          .id("row1")
      }
      .width(300).height(300)
      .margin({left: 50})
      .border({width:2, color: "#6699FF"})
    }
    .height('100%')
  }
}