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Today I’m continuing my series of iCloud/Core Data-related posts with a discussion of duplicate data, how and why it occurs, and what you can do about it in your apps. As with my previous post in this series, today I’m sticking to how things are supposed to work and sometimes actually do.
The problem of duplicate data isn’t actually specific to iCloud. It can happen in any case where people might create data on different devices and where your app wants to sync that data between the devices.
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