Using an item with the "minecraft:entity_placer" component will not cause an item with the "minecraft:cooldown" component to enter cooldown. When initiating the cooldown via scripting, the item can still be used while it is cooling down. An example of an item file is attached.

Expected Behaviour: When used on a Grass block, item will spawn a Pig and enter cooldown, rendering items of the same cooldown category unusable for the duration

Observed Behaviour: Item places a Pig when used on a Grass block. No cooldown is initiated.