code: function copyData (dest, sourceData) {
    var parsedProperty;
    var key;
    for (key in sourceData) {
      if (sourceData[key] === undefined) { continue; }
      parsedProperty = sourceData[key];
      dest[key] = isObjectOrArray(parsedProperty)
        ? utils.clone(parsedProperty)
        : parsedProperty;
    }
    return dest;
  }
docs: Clone component data.
  Clone only the properties that are plain objects while keeping a reference for the rest.
  
  @param data - Component data to clone.
  @returns Cloned data.