Every time I see a race condition like this the only thing I can think of is the Therac-25: https://blog.bugsnag.com/bug-day-race-condition-therac-25/ https://b

Every time I see a race condition like this the only thing I can think of is the Therac-25: https://blog.bugsnag.com/bug-day-race-condition-therac-25/ https://blog.bugsnag.com/bug-day-race-condition-therac-25/ This isn't that, obviously, but it underscores the importance of testing. This clearly should have been caught in QA.