The monster spawner countaining a zombie nautilus spawn egg works on brightness. This is illogical, as it burns on daylight and counts towards the hostile mob cap. It should not be able to summon any zombie nautilus until the light level is 0.

Steps to reproduce the issue:

• Place a monster spawner with a zombie nautilus spawn egg in it on daylight.

Expected result:

• The monster spawner should not spawn any zombie nautilus.

Actual result:

• It does spawn, meaning the zombie nautiluses just burned to death