title: Emberjs bug? Observer called when value is changed, but other bindings to same value is not updated
body: <p>I have an observer to a value "App.selectedValue". I also have another Ember object that has a binding (App.someObj.appValueBinding) to App.selectedValue. However, when my observer is called, the binding of App.someObj is not updated.</p>
  
  <p>This is illustrated in <a href="http://jsfiddle.net/Ur2Qj/8/" rel="nofollow">http://jsfiddle.net/Ur2Qj/8/</a></p>
  
  <p>In the jsfiddle, you can see in the Chrome debugger or FireBug, that App.selectedValue and App.someObj.appValue have different values, even tho' the latter is bound to the former.</p>
  
  <p>Seems like the binding should be updated when the observer is called. Is this expected behavior in Emberjs or is it a bug? Is there a work-around?</p>
  
  <p>Thanks for looking at this!</p>