目录默认节点被删除时，重置默认节点为根节点

648540858

2022-01-21 3f5e885e82953d55cb808624800f302886a11777

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[submodule "be.teletask.onvif-java"]
    path = be.teletask.onvif-java
    url = https://gitee.com/pan648540858/be.teletask.onvif-java.git