armor.body and saddle slots not working as intended with prevent_equipment_drop Enchantment Effect, keepInvetory gamerule and /clear command

armor.body slot prevent_equipment_drop enchantment effect bug:
Steps to reproduce:

Equipping an item into the armor.body slot that has Curse of Vanishing Enchantment(prevent_equipment_drop enchantment effect):
/item replace entity @s armor.body with minecraft:diamond_horse_armor[enchantments={vanishing_curse:1}]

Dying to see if the Curse of Vanishing works:
/kill @s

Expected Result:
Item disappearing and not dropping on death.

Actual Result:
Item dropping to the ground on death even though it has Curse of Vanishing.



saddle slot prevent_equipment_drop enchantment effect bug:
Steps to reproduce:

Equipping an item into the saddle slot that has Curse of Vanishing Enchantment(prevent_equipment_drop enchantment effect):
/item replace entity @s saddle with minecraft:saddle[enchantments={vanishing_curse:1}]

Dying to see if the Curse of Vanishing works:
/kill @s

Expected Result:
Item disappearing and not dropping on death.

Actual Result:
Item dropping to the ground on death even though it has Curse of Vanishing.

armor.body slot not working with /clear command:
Steps to reproduce:

Equpping an item into armor.body slot:
/item replace entity @s armor.body with minecraft:diamond_horse_armor

Checking if item is in the armor.body slot:
/data get entity @s equipment.body

Using /clear command:
/clear @s

Checking if item is in the armor.body slot:
/data get entity @s equipment.body

Expected Result:
/data get entity @s equipment.body returning fail with the description of: Found no elements matching equipment

Actual Result:
/data get entity @s equipment.body returning item stack, meaning the slot still has the item.



saddle slot not working with /clear command:
Steps to reproduce:

Equpping an item into saddle slot:
/item replace entity @s saddle with minecraft:saddle

Checking if item is in the armor.body slot:
/data get entity @s equipment.saddle

Using /clear command:
/clear @s

Checking if item is in the saddle slot:
/data get entity @s equipment.saddle

Expected Result:
/data get entity @s equipment.saddle returning fail with the description of: Found no elements matching equipment

Actual Result:
/data get entity @s equipment.saddle returning item stack, meaning the slot still has the item.



armor.body slot disappearing on death while gamerule keepInventory is True:
Steps to reproduce:

Equpping an item into armor.body slot:
/item replace entity @s armor.body with minecraft:diamond_horse_armor

Changing the gamerule keepInventory to True:
/gamerule keepInventory true

Killing the player:
/kill @s

Checking if item is in the armor.body slot:
/data get entity @s equipment.body

Expected Result:
/data get entity @s equipment.body returning item stack, meaning the slot still has the item.

Actual Result:
/data get entity @s equipment.body returning fail with the description of: Found no elements matching equipment
The item is also not dropped on death, so it completely vanishes.



saddle slot disappearing on death while gamerule keepInventory is True:
Steps to reproduce:

Equpping an item into saddle slot:
/item replace entity @s saddle with minecraft:saddle

Changing the gamerule keepInventory to True:
/gamerule keepInventory true

Killing the player:
/kill @s

Checking if item is in the armor.body slot:
/data get entity @s equipment.saddle

Expected Result:
/data get entity @s equipment.saddle returning item stack, meaning the slot still has the item.

Actual Result:
/data get entity @s equipment.saddle returning fail with the description of: Found no elements matching equipment
The item is also not dropped on death, so it completely vanishes.