The Bug:

Small dripleaves with the "upper" block state tag are instantly destroyed upon being placed down.

This issue does not occur when using the "lower" block state tag.

Steps to Reproduce:

1. Give yourself an oak door and a small dripleaf that both have the "upper" block state tag by using the commands provided below.

   /give @s minecraft:oak_door{BlockStateTag:{half:"upper"}}

   /give @s minecraft:small_dripleaf{BlockStateTag:{half:"upper"}} 

2. Place down the oak door and take note of how it places down correctly with the assigned block state tag.
3. Place down the small dripleaf.
4. Take note as to whether or not small dripleaves with the "upper" block state tag are instantly destroyed upon being placed down.

Observed Behavior:

Small dripleaves with the "upper" block state tag are instantly destroyed upon being placed down.

Expected Behavior:

Small dripleaves with the "upper" block state tag would not be instantly destroyed upon being placed down.