How to not implement your HttpMessageHandler when using the Asp.Net Core TestHost

correct-setup.cs

public class IntegrationTestsHttpMessageHandler : HttpMessageHandler
{
    protected override Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
    {
        var handler = TestServer.CreateHandler();
        return handler.SendAsync(request, cancellationToken);
    }
}

errorenous-setup.cs

public class IntegrationTestsHttpMessageHandler : HttpMessageHandler
{
    private HttpClient Client => TestServer.CreateClient();

    protected override Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
    {
        return Client.SendAsync(request, cancellationToken);
    }
}

Action<JwtBearerOptions> additionalJwtOptions = options =>
{
    options.BackchannelHttpHandler = new IntegrationTestsHttpMessageHandler();
};