World values aren't updated on world startup.

[fernferret]

For example, if a world has a value to the non-default (PVP on, for example) the MV setting will be true but the CB setting will be false.

Steps to reproduce:

1. Set a world's PVP to false (/mvm set pvp false world).
2. Restart server.
3. Check the info /mv info world. The MV pvp will be true, but the CB one will be false.