Players' capes detach from their bodies when wearing non-chestplate items in the chest slot

The Bug:

Players' capes detach from their bodies when wearing non-chestplate items in the chest slot.

Steps to Reproduce:

1. Give yourself a diamond that can be placed in the chest slot by using the command provided below.

   /give @s minecraft:diamond[minecraft:equippable={slot:'chest'}]

2. Equip the diamond into the chest slot, enter third person and look at how the cape is positioned.

Observed Behavior:

Players' capes detach from their bodies when wearing non-chestplate items in the chest slot.

Expected Behavior:

Players' capes would not detach from their bodies when wearing non-chestplate items in the chest slot.