dirt/grass sand and wood blocks

Put the summary of the bug you're having here

What I expected to happen was...:
The dirt/grass sand and wood blocks can be destroyed by an explosion by TNT or Creeper.

What actually happened was...:
When a Creeper explode or plant a TNT at a dirt/grass sand and wood blocks the explosion did not take any damage at all, except for the stone sandstone and wooden planks.

Steps to Reproduce:
1. Put a step by step guide on how to trigger the bug here
2. ...
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