Update to new version with bamboo and reserved world

Put the summary of the bug you're having here

What I expected to happen was...:
Describe what you thought should happen here

What actually happened was...:
When I update from 1.14 Pre-Realease 5 to 1.14, bamboo fall because when world update he is made under bamboo water

Steps to Reproduce:
1. Update to new version 1.14.
2. Make reserve your world.
3. Tried to find this.