code: function(oEvent) {
  			var oMN = this.getMessageNotifier();
  
  			if (oMN && oMN.getId() === oEvent.getParameter("notifier").getId()) {
  				oMN.invalidate();
  			}
  		}
docs: This function is called when the 'messageSelected' event listener was
  attached/detached to the MessageNotifier. If the MessageNotifier is
  affected it is invalidated accordingly so the inplace message of the
  MessageNotifier is clickable or not and has visual features as if it were
  clickable.