Absorption hearts will render as empty when it's at half a heart.
This also affects 1.20.80

How To Reproduce The Bug:

1. Obtain any amount of absorption hearts.
2. Take half a heart of damage.

Expected Results:
The absorption heart will render as half an absorption heart..

Actual Results:
The absorption heart will render empty.

Screenshots / Videos:
Vanilla world with no texture packs. https://youtu.be/5EcZ2-exZAU
Featured Server (1st Person Perspective). https://youtu.be/AtXlvFyUnmw
Same Featured Server (3rd Person Perspective with Hearts Shown). https://youtu.be/LHkjsynte8Q

10 🟨 20 🟥 means 5 absorption hearts and 10 hearts.

 9 🟨 20 🟥 means 4.5 absorption hearts and 10 hearts etc.