Class data derived from TheoryData<SomeType[]> is broken

[bradwilson]

I still experience this issue in v2.9.2 when using the ClassData attribute with a class derived from TheoryData.
See the modified example with the exceptions next to the Add calls.

    [Theory]
    [ClassData(typeof(ExampleParameters))]
    public void ExampleParameterizedTestMethod(string[] values)
    {
        Assert.All(values, s => Assert.True(s.Length < 10));
    }

    private sealed class ExampleParameters : TheoryData<string[]>
    {
        public ExampleParameters ()
        {
            Add(new string[] { "0" }); //System.ArgumentException: Object of type 'System.String' cannot be converted to type 'System.String[]'.
            Add(new string[] { "0", "2" }); //System.InvalidOperationException: The test method expected 1 parameter value, but 2 parameter values were provided.
            Add(new string[] { "0", "2", "4" }); //System.InvalidOperationException: The test method expected 1 parameter value, but 3 parameter values were provided.
        }
    }

Originally posted by @afuersch in #3031 (comment)

[bradwilson]

My reply in that other issue:

Bad news: I can reproduce this.

Good news: I can't reproduce in v3, so the version of TheoryData in v3 works correctly. The 1.0 release of v3 is coming before year's end (I'm planning to release a final 0.6.0 pre-release shortly, then after a couple weeks of stability testing, release 1.0.)

I'll look to see whether I can solve this for v2 or not. The difference in design between TheoryData in v2 and v3 doesn't allow me to back-port the v3 code, so that's not an available solution.

[bradwilson]

Available in 2.9.3-pre.5 https://xunit.net/docs/using-ci-builds