When I started a Survival world in 19w34a the bounes chest spawned floating

Put the summary of the bug you're having here

What I expected to happen was...:
Chest spawns in Air instead of ground

What actually happened was...:
Chest spawned in the air

Steps to Reproduce:
1. Put a step by step guide on how to trigger the bug here
2. Open a survival world
3. Turn on bounes chest and there!
3. ...