[Bug]: Upgrade action is duplicating lists

[sbouchexbellomie-Philips]

Version

• [x] I confirm that I am using the latest version

Source Version

Azure DevOps Server 2019

Target Version

Azure DevOps Service

Relevant configuration

My configuration contains the following part:

"TfsWorkItemTypeValidatorTool": {
        "Enabled": true,
        "ExcludeWorkItemtypes": [
          "Program Epic"
        ]
}

Relevant log output

The upgrade does not print any errors/warnings

What happened?

The upgraded configuration file contains the following part:

"TfsWorkItemTypeValidatorTool": {
        "Enabled": true,
        "ExcludeWorkItemTypes": [
          "Program Epic",
          "Program Epic"
        ]
}

Entries in ExcludeWorkItemTypes are duplicated

Same for ExcludeSourceFields/*

Debug in Visual Studio

• [x] Visual Studio Debug