The bug
the game says Will be saved in "World" when the world name is empty, but it is not, in fact the Create new world button is grayed out and cannot be pressed. Yet (according to Shuddery) it does not make sense that a single space " ", for example, can be saved as "World" and a world can be created.
How to reproduce
try to create a world without the name
Attachments
Comments 6
As Dhranios said, the string has other uses too, such as replacing special characters with filesystem-friendly ones.
The string is used when you name 2 worlds the exact same thing. Then the second world will be named "<world> (<number>)".
Might want to clear up the report that it's about the fact that the string appears when creating is disallowed.