code: function onModelChanging(evnt) {
  		if(inputChanged) {
  			//TODO haxxor, eat the first model changing event which immediately follows
  			//input changed
  			inputChanged = null;
  		} else {
  			_cache.remove(_getKey(evnt.file));
  		}
  	}
docs: Callback from the orion.edit.model service
  @param {Object} event An <tt>orion.edit.model</tt> event.
  @see https://wiki.eclipse.org/Orion/Documentation/Developer_Guide/Plugging_into_the_editor#orion.edit.model