Constructor called 10 times when converting

Why this code:

public class Program
    {

        static int Main(string[] args)
        {
            var verbs = typeof(Program).Assembly.DefinedTypes
                .Where(t => t.CustomAttributes.Any(a => a.AttributeType == typeof(VerbAttribute)))
                .Select(ti => ti.AsType())
                .ToArray();
            var resultCode = Parser.Default.ParseArguments(args, verbs).MapResult(
                (IVerb verb) => verb.Execute(),
                errs => 1
            );

            Console.WriteLine("Press any key to exit...");
            Console.ReadKey();

            return resultCode;
        }
    }

    [Verb("testWeeklySchedule", HelpText = "Test using some fake data.")]
    internal class TestWeeklySchedule : IVerb
    {
        public TestWeeklySchedule(TimeOfDay startTime, IEnumerable<DayOfWeek> daysOfWeek)
        {
            //StartTime = TimeSpan.Parse(startTime);
            StartTime = startTime;
            DaysOfWeek = daysOfWeek;
        }

        [Option(HelpText = "Time to start event.")]
        public TimeOfDay StartTime { get; }

        [Option(Required = true, HelpText = "Days to execute event.", Min = 1)]
        public IEnumerable<DayOfWeek> DaysOfWeek { get; }

        public int Execute()
        {
            Console.WriteLine("Hello world with schedule " + JsonConvert.SerializeObject(this));
            return 0;
        }
    }

    internal class TimeOfDay
    {
        public static int timesCalled = 0;
        public TimeOfDay(string timeAsString)
        {
            timesCalled++;
            Console.WriteLine("Constructor called with " + timeAsString);
            Time = TimeSpan.Parse(timeAsString);
        }

        public TimeSpan Time { get; }
    }

Calls the constructor 10 times?!?!?!?!?!?!?! The output is

Constructor called with 00:00 Constructor called with 00:00 Constructor called with 00:00 Constructor called with 00:00 Constructor called with 00:00 Constructor called with 00:00 Constructor called with 00:00 Constructor called with 00:00 Constructor called with 00:00 Constructor called with 00:00 Hello world with schedule {“StartTime”:{“Time”:“00:00:00”},“DaysOfWeek”:[1]} Press any key to exit…

[moh-hassan]

Tested with v2.4.3+ and Constructor is called only once.

[antonioortizpola]

Sure, it is just what we are doing, just simple and quick converters that do not cause trouble if they are called some extra times and just at the beginning of the app, however, is nice to see the root of the problem, i could not make the time to check the source so thanks a lot for the clarification.

I know is too radical to change the code to avoid this, but maybe a note in the documentation to warn the newcomers to be careful about this could be great.