Shulker boxes placed by dispensers always have their top side pointing outward from the direction the dispenser is facing. This behavior is not consistent though when the dispenser is facing downwards, has an air gap in front of it (to place the shulker box), and any block after the air. This behavior is unexpected when considering the shulker box can't even be opened due to the dispenser blocking it, and that all other 3 directions do not share this behavior.

Steps to Reproduce:

1. Recreate the following setup (or simply the 'top' dispenser)
   
2. Fill the dispensers with 1-9 shulker boxes
3. Power the dispensers

Observed Behavior:

The east, south, and west dispensers will all place the shulker box with it's bottom side on the dispenser, but the north dispenser will have the box facing upwards.

Expected Result:

All the boxes would be placed facing towards the block in the middle: