That's because none of this is a bug, the new behavior is correct. The LED is powered down when the device itself is powered down or in a low power state (i.e., suspend to RAM). There was an issue where being plugged in could prevent the device from successfully entering a low power state, which, besides making your charge time longer, and potentially confusing Nickel's idea of how to suspend the device later on, caused the charging LED to stay on. *That* was a bug
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