anchor.diff:                  let world = EventWorld.addEventState stateKey state world
                   let world =
                       if tracked then
  -                        let eventTrace = EventTrace.record "Stream" "track" evt.Trace
  +                        let eventTrace = EventTrace.record "Stream" "trackPlus" evt.Trace
                           EventWorld.publish<'a, Participant, 'w> evt.Data subscriptionAddress eventTrace evt.Publisher world
                       else world
                   (Cascade, world)
  
positive.code:                 let world = EventWorld.addEventState stateKey state world
                  let world =
                      if tracked then
                          let eventTrace = EventTrace.record "Stream" "track4" evt.Trace
                          let eventData = transformer state
                          EventWorld.publish<'b, Participant, 'w> eventData subscriptionAddress eventTrace evt.Publisher world
                      else world
  
negative.code:                 let world = EventWorld.addEventState stateKey state world
                  let world =
                      if tracked then
                          let eventTrace = EventTrace.record "Stream" "trackPlus2" evt.Trace
                          EventWorld.publish<'a, Participant, 'w> state subscriptionAddress eventTrace evt.Publisher world
                      else world
                  (Cascade, world)
  