From fdeec5e0a55818e551077e58562df697bf02edd0 Mon Sep 17 00:00:00 2001
From: Christoph Oelckers <coelckers@users.noreply.github.com>
Date: Sun, 6 Nov 2022 23:23:31 +0100
Subject: [PATCH] - fixed bad index check in CanWipe.

This can be called with index == -1, which should check the first element of the intermission.
---
 wadsrc/static/zscript/engine/screenjob.zs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/wadsrc/static/zscript/engine/screenjob.zs b/wadsrc/static/zscript/engine/screenjob.zs
index e3fdc044d4..a339def91c 100644
--- a/wadsrc/static/zscript/engine/screenjob.zs
+++ b/wadsrc/static/zscript/engine/screenjob.zs
@@ -371,7 +371,7 @@ class ScreenJobRunner : Object UI
 
 	bool CanWipe()
 	{
-		if (index < jobs.Size()) return !jobs[index].nowipe;
+		if (index < jobs.Size()) return !jobs[max(0, index)].nowipe;
 		return true;		
 	}