From a31df85894236c2f4de193848213b23f6b1d19c7 Mon Sep 17 00:00:00 2001
From: Jeremy Ruston <jeremy@jermolene.com>
Date: Tue, 11 Mar 2025 13:59:19 +0000
Subject: [PATCH] varlist operator: fixed crash accessing non-existent variable

See https://github.com/TiddlyWiki/TiddlyWiki5/pull/8972#issuecomment-2712068743
---
 core/modules/filters/varlist.js | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/core/modules/filters/varlist.js b/core/modules/filters/varlist.js
index 5c6db3616..0857da2fe 100644
--- a/core/modules/filters/varlist.js
+++ b/core/modules/filters/varlist.js
@@ -5,8 +5,6 @@ module-type: filteroperator
 
 Retrieve the value of a variable as a list
 
-[all[shadows+tiddlers]]
-
 \*/
 (function(){
 
@@ -18,9 +16,8 @@ Retrieve the value of a variable as a list
 Export our filter function
 */
 exports.varlist = function(source,operator,options) {
-	// Check for common optimisations
 	var variableInfo = operator.operand && options.widget.getVariableInfo(operator.operand);
-	if(variableInfo) {
+	if(variableInfo && variableInfo.text !== undefined) {
 		return options.wiki.makeTiddlerIterator(variableInfo.resultList);
 	} else {
 		return [];