Describe the bug
If worldBorderCollisionRoundingFix is enabled and the world border is set so that it doesn't cover a whole block, players will be able to walk through it without encountering a collision.

To Reproduce
Steps to reproduce the behavior:

1. Set world border to a number such as 19.1
2. Attempt to walk through the world border
3. Notice that you walked straight through

Expected behavior
I expect the world border to be solid.

Screenshots
N/A

Minecraft Version:

• 1.20.4
  Carpet-Fixes Version:
• v1.7.10
  Carpet Version:
• v1.4.128

Additional context
N/A