From f914aa6605ba11aa62ba7bd72bab126e3ff3a5b3 Mon Sep 17 00:00:00 2001
From: Jeremy Ruston <jeremy@jermolene.com>
Date: Thu, 20 Mar 2025 17:46:12 +0000
Subject: [PATCH] Fix bug exposed in "Filter Operators" tiddler

See https://github.com/TiddlyWiki/TiddlyWiki5/pull/8972#issuecomment-2740003414
---
 core/modules/widgets/widget.js | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/core/modules/widgets/widget.js b/core/modules/widgets/widget.js
index ad2ab4c2c..06e023936 100755
--- a/core/modules/widgets/widget.js
+++ b/core/modules/widgets/widget.js
@@ -421,9 +421,13 @@ Widget.prototype.computeAttribute = function(attribute,options) {
 			value = [value];
 		}
 	} else { // String attribute
-		value = attribute.value || "";
+		value = attribute.value;
 		if(options.asList) {
-			value = [value];
+			if(value === undefined) {
+				value = [];
+			} else {
+				value = [value];
+			}
 		}
 	}
 	return value;