Shulker boxes can be opened when blocked by small dripleaves

The Bug:

Shulker boxes can be opened when blocked by small dripleaves.

Steps to Reproduce:

• Place down a shulker box.
• Place down a small dripleaf next to the shulker box.
• Attempt to open the shulker box.
• Take note as to whether or not shulker boxes can be opened when blocked by small dripleaves.

Observed Behavior:

Shulker boxes can be opened when blocked by small dripleaves.

Expected Behavior:

Shulker boxes would not be able to be opened when blocked by small dripleaves.