lodash/_customOmitClone.js

define(['./isPlainObject'], function(isPlainObject) {

  /** Used as a safe reference for `undefined` in pre-ES5 environments. */
  var undefined;

  /**
   * Used by `_.omit` to customize its `_.cloneDeep` use to only clone plain
   * objects.
   *
   * @private
   * @param {*} value The value to inspect.
   * @param {string} key The key of the property to inspect.
   * @returns {*} Returns the uncloned value or `undefined` to defer cloning to `_.cloneDeep`.
   */
  function customOmitClone(value, key) {
    return (key !== undefined && isPlainObject(value)) ? undefined : value;
  }

  return customOmitClone;
});