StartOperation dependency is tracked outside of dependency activity #864

using System;
using System.Diagnostics;
using System.Threading.Tasks;
using System.Web.Http;
using Microsoft.ApplicationInsights;
using Microsoft.ApplicationInsights.DataContracts;

namespace MvcFiveApp.Controllers
{
    public class TestController : ApiController
    {
        private readonly TelemetryClient telemetryClient = new TelemetryClient();

        [System.Web.Http.AcceptVerbs("GET")]
        public async Task<string> DoWork([FromUri] int WorkID)
        {
            try
            {
                Activity.Current.AddTag("WorkID", WorkID.ToString()); // Exists for Request, Dependency, Trace and Exception telemetry

                using (var dependency = this.telemetryClient.StartOperation<DependencyTelemetry>("StoreWork"))
                {
                    Activity.Current.AddTag("DependencyID", Guid.NewGuid().ToString("N")); // Exists only for Trace telemetry. Expectation: exists for Dependency as well

                    this.telemetryClient.TrackTrace("MyTrace");
                    await Task.Delay(TimeSpan.FromMilliseconds(267)).ConfigureAwait(false);
                    this.telemetryClient.TrackTrace("MyTrace2");

                    if (WorkID > 10)
                    {
                        throw new Exception("Too big ID!");
                    }
                }

                return WorkID.ToString();
            }
            catch (Exception ex)
            {
                this.telemetryClient.TrackException(ex);
                throw;
            }
        }
    }
}