Abnormally huge /spike command hangs worldedit for user.

[Feriach]

Hello,
using latest fawe and arceon(no other plugins) I was able to reproduce an error from my server which basically hangs worldedit for an user. There are no errors in the console.
Steps to reproduce:
-type "/spike stone 20 500"
-world edit cannot be used until server restart. //cancel is not working