Mud block collision box is a full block

Summary:
Mud block became full block. Prior to version 1.19.0.28/29, block collision was incomplete, which was in line with the Java version.

Steps to reproduce:

1. Place a mud block.
2. Find out block collision.

Observed results:
A mud block collision is a full block.

Expected results:
The mud block will have an incomplete collision like in the java version.