The Problem

I wrongly did //set instead of //wall, then the server crashed.
Unfortunately, doing //undo didn't help because //undo //redo doesn't work after server restarting/crashing.
As a result, the whole map disappeared.

A Solution

I believe that an warning should be sent before the operation when the number of blocks about to be modified is too big, and the server is going to crash anyway.

Alternatives

No response

Anything Else?

We might want a command to suppress a warning

duplicates #1500