reading an computed property in a compute makes the binding on the compute not the map

[JaneOri]

This causes problems because the events aren't forwarded to the map, which makes it so listening to change can never see those events.

var Type = can.Map.extend({
  define: {
    prop: {
      set: function(newVal){ return newVal; }
      get: function(lastSet){ return lastSet; },
      serialize: true
    }
  }
});

var t = new Type({prop: true})

var c = can.compute(function(){
  return t.attr("prop");
})

t.bind("change", function(){
  console.log("CHANGE EVENT");
});

t.attr("prop", false); //-> NOTHING logged

c.bind("change", function(){})

t.attr("prop", true); //-> NOTHING logged

t.bind("prop",function(){})

t.attr("prop", false); //-> CHANGE EVENT logged