I ran into some weird behavior halfway through Chapter 15, probably a typo by myself, or missed connection. So copied over the Chapter 14 downloaded solution. Also deleted the ~/Library/Application Support/iPhone Simulator/6.1/Applications/[UUID] directory (hereafter UUID directory) for Homepwner.
Thought this would get a fresh start with this version, but it does not save the state into an items.archive file. Strangely, the image copies are saved into the UUID directory. But when quitting and relaunching the simulator, the old items do not reappear.
Same behavior with the Chapter 15 solution, which leaves me at the least frustrated that I have to re-populate every time I run the app. And worrying that further development will start breaking worse. Any suggestions?