Endermen holding bells or bell block display entities only render the bell frame

The bug

An enderman holding a bell or a bell block display entity does not render the golden part of the bell; only the bell frame is rendered.

How to reproduce

1. Run the commands:

   /summon minecraft:enderman ~ ~ ~ {NoAI:1,carriedBlockState:{Name:"bell"}} 

   /summon minecraft:block_display ~ ~ ~ {block_state:{Name:"minecraft:bell"}} 

Observed result

Only the frame of the bell is shown in the enderman's hands or as a block display.

Expected result

The entire bell block would be rendered, including the frame and the bell itself.