Dismount from the boat, or leave the bed can allow the player phase through corners.

Steps to reproduce:

1. Build a structure like the image below.
2. Mount the boat
3. Keep trying to move towards the corner.
4. Dismount

Step 2

1. Place the bed at the corner (Notice you required to face away from the corner)
2. Set the time to night
3. Sleeping on the bed
4. Leave the bed

Observed result:
The bed and boat will make the player phase through corners.

Expected result:

The bed and boat will not make the player phase through corners.