Resolve Moghouse zoneline warping exploit

I affirm:

[x] that I agree to Project Topaz's Limited Contributor License Agreement, as written on this date
[x] that I've tested my code since the last commit in the PR, and will test after any later commits

Thanks to Dera @ Noct. Souls for testing this for me 👍

As always, server operators have had access to this for a while. This exploit was cute, a little sad to see it go 😆

project-topaz / topaz