From 5fe2d718e020b2704c0380b9c5d2cf1b781b6c66 Mon Sep 17 00:00:00 2001
From: Jeremy Ruston <jeremy@osmosoft.com>
Date: Wed, 21 Aug 2013 22:33:04 +0100
Subject: [PATCH] Fix crash with "fields" filter operator applied to missing
 tiddlers

Fixes #132
---
 core/modules/filters/fields.js | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/core/modules/filters/fields.js b/core/modules/filters/fields.js
index 77eae290b..ff145b561 100644
--- a/core/modules/filters/fields.js
+++ b/core/modules/filters/fields.js
@@ -22,8 +22,10 @@ exports.fields = function(source,operator,options) {
 	function checkTiddler(title) {
 		// Return the fields on the specified tiddler
 		var tiddler = options.wiki.getTiddler(title);
-		for(var fieldName in tiddler.fields) {
-			$tw.utils.pushTop(results,fieldName);
+		if(tiddler) {
+			for(var fieldName in tiddler.fields) {
+				$tw.utils.pushTop(results,fieldName);
+			}
 		}
 	}
 	// Iterate through the source tiddlers