RSRP-458901: Wrong qualifier binding in Move Instance Method

namespace RefactoringExamples.ReplaceConditionalWithPolymorphism
{
    public class Employee
    {
        private EmployeeType _employeeType;
        private readonly int _monthlySalary;
        private readonly int _commission;
        private readonly int _bonus;
 
        public Employee(int type)
        {
            Type = type;
            _monthlySalary = 100;
            _commission = 10;
            _bonus = 20;
        }
 
        public int Type
        {
            get { return _employeeType.TypeCode; }
            set { _employeeType = EmployeeType.TypeFrom(value); }
        }
 
        public int PayAmount()
        {
            return Pay();
        }
 
        private int Pay()
        {
            switch (_employeeType.TypeCode)
            {
                case EmployeeType.Engineer:
                    return _monthlySalary;
                case EmployeeType.Salesperson:
                    return _monthlySalary + _commission;
                case EmployeeType.Manager:
                    return _monthlySalary + _bonus;
                default:
                    throw new Exception("Incorrect Employee");
            }
        }
    }
}

using System;
 
namespace RefactoringExamples.ReplaceConditionalWithPolymorphism
{
    public abstract class EmployeeType
    {
        public abstract int TypeCode { get; }
 
        public static EmployeeType TypeFrom(int value)
        {
            switch (value)
            {
                case Engineer:
                    return new Engineer();
                case Salesperson:
                    return new Salesperson();
                case Manager:
                    return new Manager();
                default:
                    throw new Exception("Incorrect Employee Code");
            }
        }
 
        public const int Engineer = 0;
        public const int Salesperson = 1;
        public const int Manager = 2;
    }
 
    class Engineer : EmployeeType
    {
        public override int TypeCode => Engineer;
    }
 
    class Salesperson : EmployeeType
    {
        public override int TypeCode => Salesperson;
    }
 
    class Manager : EmployeeType
    {
        public override int TypeCode => Manager;
    }
}