Foul on shot causes travel.

[Robert E. Harrison]

As a player is going up for a try he is bumped. The bump causes the pivot foot that had been lifted on the try to return to the floor before the ball is released. The ball is released shortly after the pivot foot returns to the floor and the ball goes through the basket.
Do you count the basket or award two shots and disallow the basket.
I have also seen the bump cause the shooter to drag his pivot foot before releasing the ball on the try.
Thanks for the help.