APSHTTPOperation crashes app randomly
Note: This issue is very intermittent and can be difficult to reproduce.
1: Open APSCloudExample app
2. Add key to AppDelegate.m
3. Run the app
4. Create a Review
5. Query Reviews
6. Open a Review and update it
7. Back out on screen
8. Open the Review again (at this point the app should crash, if it does not, back out and open the review several times until the app does crash).
See attached screen shot for typical crash stack trace