I have the Buka version installed.
The situation where ballistas go into negative values (which I consider a bug) is present there as well.

I don't play HoMM 3 much. But can long battles lasting more than 24 rounds occur? If possible, then theoretically, a situation could arise where a ballista in such a battle continues to fire automatically and goes into negative values before the battle ends. And it's not a case of slow units on the opponent's side, but rather that you have many troops. Would this situation also fall under the bug? Or would it be an exception?
PS. In other words, we have found out that everyone can use this bug, whether patched or not. Now we just need to wait for the tournament organizers' verdict on whether this ballista trick is allowed or banned, and if there are exceptions based on the type of battle if the trick is banned. Correct?