Shulker heads now disappear when invisible

In the recent update (1.21.2) shulker heads no longer appear invisible when under the invisibility effect. This is against what the Works As Intended MC-93884 states.

Steps to Reproduce:

1. Run the command

   /summon shulker ~ ~ ~ {active_effects:[{duration:-1,amplifier:0b,id:"minecraft:invisibility"}],NoAI:1b}

1. Shulker head is no longer visible

1.21.2+

1.21.1