code: function (vName) {
  
  			if (this.oComponentData.mode === ObjectPageConfigurationMode.JsonModel) {
  				var oController = this._oView.getController();
  
  				//some factory requires post-processing once the view and model are created
  				if (oController && oController.connectToComponent) {
  					oController.connectToComponent(this.getModel("objectPageLayoutMetadata"));
  				}
  			}
  			return UIComponent.prototype.propagateProperties.apply(this, arguments);
  		}
docs: traps propagated properties for postprocessing on useExternalModel cases
  @param {*} vName the name of the property
  @returns {*} result of the function