code: function(oOverlay) {
  			var oModel = oOverlay.getElement().getModel();
  			if (oModel){
  				var oMetaModel = oModel.getMetaModel();
  				if (oMetaModel && oMetaModel.loaded){
  					oMetaModel.loaded().then(function(){
  						this.evaluateEditable([oOverlay], {onRegistration: true});
  					}.bind(this));
  				}
  			}
  			Plugin.prototype.registerElementOverlay.apply(this, arguments);
  		}
docs: Register an overlay
  If the MetaModel was not loaded yet when evaluating addODataProperty, the
  plugin returns editable = false. Therefore we must make an extra check after
  the MetaModel is loaded.
  @param  {sap.ui.dt.Overlay} oOverlay overlay object
  @override