That is a pretty weird one for sure.
So it's not 100% guaranteed even in games where there's no foul out or injury. Good to know.
Oh the vagaries of the substitution AI. It's all crazee like!
Of course, the set of circumstances that caused it is pretty limited - you've got to have a shooting foul take place and the game decide to trigger garbage time right at that point. Of course, I would have liked to see the coach take a timeout after the second to put the trainee back in, or leave the backup to the guy taking the shots on the bench until the next break in the action, but mostly I'm just glad it was only a couple of minutes.