Reproducing ActivatorUtilities.CreateInstance & ActivatorUtilitiesConstructorAttribute Bug

ActivatorUtilitiesConstructorTests.cs

using Microsoft.Extensions.DependencyInjection;
using System;
using Xunit;

namespace UnitTests
{
    public class ActivatorUtilitiesConstructorTests
    {
        public class Dependency1 { }

        public class Dependency2 { }

        public class Dependency3 { }

        public class Service1
        {
            public Service1(Dependency1 dependency1, Dependency3 dependency3)
            {
                throw new Exception("This should not be called.");
            }

            [ActivatorUtilitiesConstructor]
            public Service1(Dependency1 dependency1, Dependency2 dependency2, Dependency3 dependency3)
            {
            }
        }

        public class Service2
        {
            [ActivatorUtilitiesConstructor]
            public Service2(Dependency1 dependency1, Dependency2 dependency2, Dependency3 dependency3)
            {
            }

            public Service2(Dependency1 dependency1, Dependency3 dependency3)
            {
                throw new Exception("This should not be called.");
            }
        }

        [Fact]
        public void CreateInstance_WithActivatorUtilitiesConstructorBeingSecond_ShouldChooseMarkedCtor()
        {
            // Arrange
            var dependency1 = new Dependency1();
            var dependency3 = new Dependency3();

            var provider = new ServiceCollection()
                .AddScoped<Dependency2>()
                .BuildServiceProvider();

            // Act & Assert
            ActivatorUtilities.CreateInstance<Service1>(provider, dependency1, dependency3); // This works.
        }

        [Fact]
        public void CreateInstance_WithActivatorUtilitiesConstructorBeingFirst_ShouldChooseMarkedCtor()
        {
            // Arrange
            var dependency1 = new Dependency1();
            var dependency3 = new Dependency3();

            var provider = new ServiceCollection()
                .AddScoped<Dependency2>()
                .BuildServiceProvider();

            // Act & Assert
            ActivatorUtilities.CreateInstance<Service2>(provider, dependency1, dependency3); // This fails.
        }
    }
}