We actually had this happen last week in a BV game after a timeout. The administering official handed the Home team the ball (The other two of us can take some blame as well. I was counting players as C though, and when I looked up he was handing it to the Home thrower). As soon as he handed it to them, he "fixed" it and took it back and gave it to the Visitors. No one said anything, so we went on.
On the way home, I mentioned that the Home coach could have been upset because there wasn't much we could do once they were handed the ball. The partner who administered the throw-in says "He can't be upset, it's a correctable error".
It's the same partner who during pregame argued that slapping the backboard while trying to block a shot can be a technical foul if it shakes the rim.