Svn VS2017反复将GlobalSection附加到解决方案文件

VS2017 v15.9.3，每次打开解决方案文件时，都会标记解决方案文件已更改。当我查看更改时，我看到一次又一次地追加相同的guid。这是VS错误还是AnkhSVN错误

Global
    GlobalSection(SubversionScc) = preSolution
        Svn-Managed = True
        Manager = AnkhSVN - Subversion Support for Visual Studio
    EndGlobalSection
    GlobalSection(SolutionProperties) = preSolution
        HideSolutionNode = FALSE
    EndGlobalSection
    GlobalSection(ExtensibilityGlobals) = postSolution
        SolutionGuid = {guid}
    EndGlobalSection
    GlobalSection(ExtensibilityGlobals) = postSolution
        SolutionGuid = {same guid gets repeated}
    EndGlobalSection
EndGlobal

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嘿，我面临着VS 2019的问题，你是如何解决的。