Create 6.0 Mechanical Drill Behavior missing

[surreal1225]

In a cobblestone generator, the mechanical drills keep their behavior from Create 5.0 where the drills spawn block entities upon breaking the cobblestone instead of immediately regenerating it, thus reducing the speed of cobblestone generators.

Is this behavior intended or a bug?

[paring-chan]

I didn't intended but there are many features that are missing because I only ported new blocks/items
So existing behavior would not be changed