API Test

What I expected to happen was...:
Frost walker should work regardless of server settings.

What actually happened was...:
When setting server-authoritative-movement to false, frost walker no longer functions as expected.

Steps to Reproduce:

1. Start BDS instance with server-authoritative-movement=true
2. Obtain frost walker boots and walk over water
3. Note that they work as expected, freezing water beneath you
4. Stop BDS instance and switch server-authoritative-movement to false
5. Rejoin world and note that frost walker no longer functions