Fix calibration decoding, and lagged backfill processing #35
+35
−9
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Calibration flag was not being decoded correctly, and all readings were marked as non-calibration. This fixes that.
If iOS drops the backfillFinished message, the backfill buffer might contain old messages, and get flushed at a much later time improperly. If the flushing happens after a new sensor is paired, the timestamp interpretation can be very off (by applying the large backfill offsets to the new sensor start date) See LoopKit/Loop#2291. This change flushes the backfill buffer on sensor disconnect, if there is anything in it.