hunk.code_window:       if (![result.token.appID isEqualToString:appId]) {
           reject(@"error", @"Logged into wrong app, try again?", nil);
           return;
         }
  
hunk.labels: keep replace replace replace replace keep
hunk.after_edit:         if (![result.token.appID isEqualToString:appId]) {
             reject(@"E_FBLOGIN_ERROR", @"Logged into wrong app, try again?", nil);
             return;
           }
  
hunk.file_path: ios/Exponent/Versioned/Core/Api/EXFacebook.m
hunk.type: replace
file: /**
   * Copyright (c) 2015-present, Facebook, Inc.
   * All rights reserved.
   *
   * This source code is licensed under the BSD-style license found in the
   * LICENSE file in the root directory of this source tree. An additional grant
   * of patent rights can be found in the PATENTS file in the same directory.
   *
   * @providesModule SceneTracker
   * @flow
   */
  
  'use strict';
  
  type Scene = {name: string};
  
  let _listeners: Array<(scene: Scene) => void> = [];
  
  let _activeScene = {name: 'default'};
  
  const SceneTracker = {
    setActiveScene(scene: Scene) {
      _activeScene = scene;
      _listeners.forEach((listener) => listener(_activeScene));
    },
  
    getActiveScene(): Scene {
      return _activeScene;
    },
  
    addActiveSceneChangedListener(callback: (scene: Scene) => void): {remove: () => void} {
      _listeners.push(callback);
      return {
        remove: () => {
          _listeners = _listeners.filter((listener) => callback !== listener);
        },
      };
    },
  };
  
  module.exports = SceneTracker;
  