NS4000 false positive in foreach loop when element used twice

[stukselbax]

NSubstitute 4.2.0.0
NSubstitute.Analyzers.CSharp 1.0.10

When using POCO properties in foreach loop and trying to setup two mocks the NS4000 warning occur. When foreach loop is removed there are no warnings. Looks like wrong behavior.

using NSubstitute;
using NUnit.Framework;
using System;
using System.Collections.Generic;

namespace Tests
{
    public class Tests
    {
        [Test]
        public void Test1()
        {
            var list = new List<DateTime>(1) { DateTime.Now };
            var enumerator1 = Substitute.For<IEnumerator<DateTime>>();
            var enumerator2 = Substitute.For<IEnumerator<DateTime>>();
            foreach (var date in list)
            {
                // case 1: use date
                enumerator1.Current.Returns(date); // No warnings
                
                // case 2: use date properties
                //enumerator1.Current.Returns(new DateTime(date.Ticks)); // NS4000 here

                enumerator2.Current.Returns(new DateTime(date.Ticks)); // NS4000 here in both cases
            }
        }
    }
}

[tpodolak]

Hi @stukselbax thanks for reporting. Looks like a bug to me as well. I will try to take a look over the weekend