Server crash on reload when worldborder is modified.

Server crashes while reloading when worldborder is modified.

Steps to reproduce:

1. Set a worldborder center somewhere other than spawn.
2. Set the worldborder to be roughly 100 blocks.
3. Run /reload

What happens:

The game attempts to reload but stops responding before it loads in the custom functions. Then, after 60 seconds, the server crashes saying that a tick took too long.