Wood doesn't react when interacting with magma blocks.

When wood interacts with magma, the block of wood doesn't seem to have any sort of reaction. It should burn and disappear, or maybe it can burn but once you remove the magma blocks it stops burning. 

How to reproduce

Start by obtaining magma and wood.
Then place a piece of wood and cover it with magma blocks. 
It doesn't seem to react.

Observations: Wood doesn't react when interacting with magma.
Expectations: It should burn and disappear or just keep on burning.