Boats still continue to move when the player leaves boat and mobs are inside the boat

Every mobs that riding a boat with the player, then the player leave a boat, the mob will continue driving a boat:

1. Place a boat
2. Spawn some mobs until they riding a boat
3. Ride a boat
4. Drive the boat until stopped by a block (in front the boat there was block and the boat stopped)
5. When the "leave a boat" button appear, click the button but do not stop driving a boat
6. Then the mob that riding a boat will continue driving a boat
7. Break the block in front the boat