Stacked snow pieces breaking to fast

I stacked the pieces of snow you can craft now up to 8. The full amount which creates a block of snow.

I thought it was going to turn into a normal block of snow.

It breaks way faster than a normal block of snow with your hand.

Steps to Reproduce:
1.Stack 8 pieces of the snow so it turns into a "block"
2.Place a snow block beside it.
3.Break both blocks with your hand. One will be faster to break.