Transform wood into other types of wood via furnace.

Hello,

If you got different kinds of wood (oak and birch)you can transform them into each other. Steps to reproduce
1. Get multiple kinds of wood.
2. Get an furnace
3. Place one kind into the furnace.
4. click on the other kind of wood.
5. The other kind will go into the furnace and becomes the first one from step 3.

thank you for listening.