I thought it wasn't out, however the following is stated on the Lords website (linked previously) for Law 19 (towards the bottom, with a youtube clip)
Example of a catch near the boundary (1)
- The first point to note with this catch, which should have been given out, is that the fielders first contact with the ball was when he was within the boundary. He does not have control over his movement at this stage, so the catch is not completed.
- Seeing his momentum will take him beyond the boundary, he tosses the ball up before making contact with the ground beyond the boundary.
- His next contact with the ball is when he is airborne, having taken off from outside the boundary this is legal, as it is not the first contact he has made with the ball.
- The final contact is back inside the boundary, when the catch is completed.
- At no stage was the fielder in contact with both the ball and the ground beyond the boundary at the same time.
- If a second fielder was involved, he may step outside the boundary and, as long as another fielder has already touched the ball, he may jump up from outside the boundary to make contact with the ball.
So unless it's changed again since 2013 then it appears the correct decision was in fact made
Example of a catch near the boundary (1)
- The first point to note with this catch, which should have been given out, is that the fielders first contact with the ball was when he was within the boundary. He does not have control over his movement at this stage, so the catch is not completed.
- Seeing his momentum will take him beyond the boundary, he tosses the ball up before making contact with the ground beyond the boundary.
- His next contact with the ball is when he is airborne, having taken off from outside the boundary this is legal, as it is not the first contact he has made with the ball.
- The final contact is back inside the boundary, when the catch is completed.
- At no stage was the fielder in contact with both the ball and the ground beyond the boundary at the same time.
- If a second fielder was involved, he may step outside the boundary and, as long as another fielder has already touched the ball, he may jump up from outside the boundary to make contact with the ball.
So unless it's changed again since 2013 then it appears the correct decision was in fact made