From 2b4fe992288fdc08b907a140f4ee3a3100139838 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Cornelius=20K=C3=B6pp?= <cornelius.koepp@fhdw.de>
Date: Sat, 12 Oct 2024 20:51:38 +0200
Subject: [PATCH] Show Error for Channel-Group- with Offset=0

---
 src/ConfigTransfer.script.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/ConfigTransfer.script.js b/src/ConfigTransfer.script.js
index e8ff8c5..0fefbee 100644
--- a/src/ConfigTransfer.script.js
+++ b/src/ConfigTransfer.script.js
@@ -161,7 +161,8 @@ function uctBtnCopy(device, online, progress, context) {
                 result.push(uctCopyModuleChannel(device, module, sourceChannels[i], sourceChannels[i] + offset));
             }
         } else /* (offset == 0) */ {
-            // should never happen
+            // all channes are the same
+            throw new Error('Quell- und Ziel-Kanal dürfen NICHT identisch sein!');
         }
 
         // hide for disjoint only!