I'm not at all sure this is a bug, because I'm sure TeslaFi is faithfully recording that the API is reporting. But today, while my car was parked at work after a charge, it actually gained 6 miles of range in the hour after charging was complete. Examining the idle log (Idle #2765 if you want to look at it, @James), the battery doesn't appear to be providing any current, yet the rated range moves from 222.02 miles to 227.51 over the course of 10 minutes while parked! (See screenshot below)
Any idea what might be going on here?
Customer support service by UserEcho