[MC-1041] You can't delete worlds in Minecraft 1.4.2!

This is a very important bug:

I can't delete a world called "Chuck Norris" in survival with cheats

Fix this bug please 😃

Linked issues

Chuck Norris cannot be deleted, Chuck Norris deletes the world !

SCNR 😉

When normal people play Minecraft, the world generates and they build a house.

When Chuck Norris plays Minecraft, the house generates and he builds the world.