Carved pumpkins on snow golems flash red when the snow golem takes damage

The Bug:

Carved pumpkins on snow golems flash red when the snow golem takes damage.

Steps to Reproduce:

1. Summon a snow golem and attack it.
2. Watch the carved pumpkin of the snow golem closely.

Observed Behavior:

Carved pumpkins flash red.

Expected Behavior:

Carved pumpkins would not flash red.