Sulfur Cubes can be hurt by Magma Blocks

• Short description of the issue

if there is a block in a sulfur cube, the sulfur cube can’t hurt by player, tnt, or arrow. but sulfur cubes still be hurt by some other reasons. Only /kill and the void should hurt it.

• Steps to reproduce the issue

Spawn a sulfur cube and give it a block.

Place a magma block.

push the sulfur cube to top of magma block.

• Expected result

Nothing happened.

• Actual result

The sulfur cube is hurted quickly and dead.