From 1ce4cda3847af26314a502a4219bbfd93d56e741 Mon Sep 17 00:00:00 2001
From: Dan Stillman <dstillman@zotero.org>
Date: Thu, 29 Oct 2015 03:07:27 -0400
Subject: [PATCH] Don't change 0 to null in
 Zotero.DataObjectUtilities.checkKey()

Not totally sure this function should allow falsy values to begin with,
but it does.
---
 chrome/content/zotero/xpcom/data/dataObjectUtilities.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/chrome/content/zotero/xpcom/data/dataObjectUtilities.js b/chrome/content/zotero/xpcom/data/dataObjectUtilities.js
index c95b47b26f..e674fc175d 100644
--- a/chrome/content/zotero/xpcom/data/dataObjectUtilities.js
+++ b/chrome/content/zotero/xpcom/data/dataObjectUtilities.js
@@ -75,7 +75,7 @@ Zotero.DataObjectUtilities = {
 	
 	
 	"checkKey": function(key) {
-		if (!key) return null;
+		if (!key && key !== 0) return null;
 		if (!Zotero.Utilities.isValidObjectKey(key)) {
 			throw new Error("key is not valid");
 		}