我的包结构如下：

"pages": [

        "pages/catalog/catalog",

        "pages/category/category"

    ],

    "subPackages":[

        {

            "root": "shopping",

            "pages": [

...

            ]

        }, {

              "root": "my",

              "pages": [

...             

              ]

        }

    ],

    "preloadRule": {

        "pages/catalog/catalog": {

            "network": "all",

            "packages": ["shopping", "my"]

        },

        "pages/category/category": {

            "network": "all",

            "packages": ["shopping", "my"]

        }

}

加载pages/catalog/catalog时，会预加载两个包，从pages/catalog/catalog跳到pages/category/category，在开发工具里看到又预加载了那两个包，也就是说，象我这样写法会重复预加载两个包？预加载的包只须加载一次就好了？