Magma Cubes don't drop Magma Cream when using new splitting system

[mintynoura]

I'm using Luna Slimes 1.7.1 on quilt, and it seems that Magma Cream doesn't drop when splitting a size 2 or larger Magma Cube. Disabling the splitting system from the config allows the items to drop normally.

This issue doesn't affect Slimes because they only drop Slimeballs when a size 1 Slime is killed, whose deaths aren't affected when the splitting system is enabled.