You can obtain opened barrels

You can obtain opened barrels. The game treats opened barrels as an obtainable block.

How to reproduce:

1. Have 2 players, let one of the players open the barrel and keep it opened, mine the barrel or pick block it, and you have an opened barrel block.

Observed Results:
It gives you an opened barrel block.

Expected Results:
It is supposed to give a closed barrel block.