MicroPinner
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Prevent data-loss on application updates caused by a different database scheme
This requires a dedicated implementation of the database-OnUpgrade feature.
https://github.com/dotWee/MicroPinner/blob/eca6230a81f235abcca1b7628ccfabd3a64e1c41/app/src/main/java/de/dotwee/micropinner/database/PinDatabase.java#L84