Trial Chamber eruption center structure dispenser no longer generate with water bucket anymore

The Trial Chamber eruption center structure dispenser no longer generate with water bucket anymore.

Steps to Reproduce

1. Go to this seed and coords
   -8789827324011597129
   /execute in minecraft:overworld run tp @s -860.38 -9.20 -5360.83
2. Check the dispenser

Expected Result
It should have the water bucket inside.

Observed Result
It doesn't have water bucket inside anymore, meaning the dispenser would be rendered useless.