_cloneObjectItem(targetObject) {
    return this._copyFabricObjectForPaste(targetObject).then((clonedObject) => {
      const objectProperties = this.createObjectProperties(clonedObject);
      this.add(clonedObject);

      this.fire(events.ADD_OBJECT, objectProperties);

      return clonedObject;
    });
  }
Clone object one item
@param {fabric.Object} targetObject - fabric object
@returns {Promise}
@private