code: function (oControl, sPropertyName) {
  			var mOldBindingInfos = oControl.getBindingInfo(sPropertyName);
  
  			JsControlTreeModifier.unbindProperty.apply(this, arguments);
  
  			if (mOldBindingInfos){
  				this._saveUndoOperation("bindProperty", [oControl, sPropertyName, mOldBindingInfos]);
  			}
  		}
docs: Unbind a property and record bindProperty as undo operation
  @param  {sap.ui.core.Control} oControl  The control containing the property
  @param  {string} sPropertyName  The property to be unbound