From 87640ed8da821cd3cac1dd8d8bc1b2e6b66b93e5 Mon Sep 17 00:00:00 2001
From: tobi <tobi@antville.org>
Date: Sun, 1 Jun 2025 13:00:46 +0000
Subject: [PATCH] =?UTF-8?q?Prevent=20=E2=80=9Cundefined=E2=80=9D=20showing?=
 =?UTF-8?q?=20up=20in=20skin=20diff?=
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---
 code/Skin/Skin.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/code/Skin/Skin.js b/code/Skin/Skin.js
index 9805e186..ef395a41 100644
--- a/code/Skin/Skin.js
+++ b/code/Skin/Skin.js
@@ -252,7 +252,7 @@ Skin.prototype.compare_action = function() {
           this.renderSkin('$Skin#difference', param);
         }
       }
-      if (line.value !== null) {
+      if (line.value !== null && typeof line.value !== 'undefined') {
         leftLineNumber += 1;
         rightLineNumber += 1;
         param.leftLineNumber = leftLineNumber;