Some item models can still clip into the block below when hovering on the ground

According to the 25w07a changelog:

Item entity

• When on ground, model size is now taken into account when determining hovering motion

  • That means that models should never clip into the block below, no matter what size they are

However, some items such as shields or dragon heads can still clip into the block below.

How to reproduce:

1. Get a shield.

2. Throw the shield to the ground.

3. Notice if the shield model clips into the ground.

4. Alternatively, repeat the previous steps with a dragon head.

Expected result:

The shield would hover on the ground without clipping into the block below.

Observed result:

The shield clips into the ground.