Pointed dripstone can be placed atop each other, even if a player would be inside the hitbox of the lower dripstone

The bug

It is possible to place a pointed dripstone on top of another pointed dripstone with a player on the edge of the lower pointed dripstone, even though this changes the hitbox.

This is probably best to explain in video form: https://youtu.be/HUN5w-YniEY

At the end of the video, I attempt to sneak, but this is not possible when inside of another block, so nothing visibly changes.

How to reproduce

1. Place a pointed dripstone on the ground
2. Sneak and move to the side of the dripstone
3. Place another pointed dripstone above the bottom dripstone
4. Notice how the hitbox of the dripstone expands, and your hitbox is now inside of its hitbox