Removing property from child object does not reload UI

1. Create a new Qt Quick UI project using component set Qt Quick 2.2.
2. Replace the contents of the project's qml file:

   import QtQuick 2.2
   
   Rectangle {
       width: 360
       height: 360
       color: "red"
   
       Rectangle {
           width: 100
           height: 100
           color: "green"
       }
   }
   

3. Start debugging this on Qt 5.2.1.
4. Activate the "Apply Changes on Save" option in the Debugger Toolbar.
5. Remove the line

           color: "green"
   

   from the inner Rectangle item and save the file.
   Nothing happens.

The UI should be reloaded automatically to reflect the change.