From cc3f99420706f61ba0cf0e610d057a72164e814f Mon Sep 17 00:00:00 2001
From: Dan Stillman <dstillman@zotero.org>
Date: Wed, 13 Nov 2019 05:33:16 -0500
Subject: [PATCH] Fix crash when clicking off an open tag to another item

Regression in React tags box
---
 chrome/content/zotero/components/itemPane/tagsBox.jsx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/chrome/content/zotero/components/itemPane/tagsBox.jsx b/chrome/content/zotero/components/itemPane/tagsBox.jsx
index 9dd7d3dbef..09672acb11 100644
--- a/chrome/content/zotero/components/itemPane/tagsBox.jsx
+++ b/chrome/content/zotero/components/itemPane/tagsBox.jsx
@@ -269,7 +269,7 @@ const TagsBox = React.forwardRef((props, ref) => {
 	}
 	
 	function blurOpenField(event) {
-		if (textboxRef.current && event.target != textboxRef.current) {
+		if (textboxRef.current && (!event || event.target != textboxRef.current)) {
 			textboxRef.current.blur();
 		}
 	}