Drowning bubbles still appear on living mobs underwater even when they have Water Breathing

The bug

Drowning bubbles still appear on living mobs underwater, even when they have Water Breathing effect, making these particles pointless and misleading as the mob is actually breathing. This is also inconsistent with the player, who does not produce such particles.

To reproduce

Summon a living entity below water and wait for a few seconds. For example, use the command below.

/summon slime ~ ~ ~ {NoAI:1b, active_effects:[{id:"water_breathing", duration:10000}], Size:2}