Damage radius for magma sulfur cubes is smaller for mobs than it is for players

Sulfur cubes with magma blocks can damage players from significantly further away than they can damage any other entities.

Steps to observe:

1. Put a sulfur cube with a magma block in a 1x1 hole in the ground

2. Dig a hole 1 block away on each diagonal

3. Place a mob in that hole pushed up against the corner, and observe whether it gets damaged or not

4. Remove the mob and enter that hole yourself, pressed up against the corner

Expected result: Either both you and the mob would get damaged from the sulfur cube peeking out of the corner, or neither of you would get damaged (ie, consistent results)

Actual result: The mob does not take any damage, but the player will take damage (inconsistent)

The results also don’t change if a mannequin is used as the mob even though they have the exact same hitbox as the player.