message: Only add item as selected if enabled
diff: @@ -322,7 +322,7 @@ export class ModelSelectorWidget extends React.Component<ModelSelectorWidgetProp
  const selectedNodes = Array<string>();
  const promises = Array<Promise<DelayLoadedTreeNodeItem | undefined>>();
  for (const item of items) {
  - if (item)
  + if (item.enabled)
  promises.push(this._getNodeFromItem(item));
  }
  