Incorrect CA1033 message for interfaces

[znakeeye]

Using VS 17.11.4, targeting .NET 8.

The following code produces CA1033: Make 'IFoo' sealed. However, you cannot make an interface sealed. Clearly, this warning is either a false positive or has the wrong message.

namespace MyLib;

public interface IBar
{
    string Baz { get; }
}

public interface IFoo : IBar
{
    string IBar.Baz => "";
}

To enable the warning, add this to the project file:

<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <TargetFramework>net8.0</TargetFramework>
    <LangVersion>latest</LangVersion>
    <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
    <AnalysisMode>AllEnabledByDefault</AnalysisMode>
    
  </PropertyGroup>

</Project>