The content of string 0, in ZQuest, is supposed to be empty (a null string), but...

int msg[255];
Game->GetMessage(0, msg); 
This traces '(none)' to allegro.log.

Certainly not a dealbreaker, but it could affect something else.

It should be easy to remedy this, and I'd suggest doing the following:

Clear the char from the editor value, leaving it blank. Remove the display of string 0 from the editor, entirely. It isn't meant to be used, after all.

Is it there because earlier ZC versions (1.92, or something) did allow setting string 0?