From c048460c22db79351f5de724e93c3bfbe26ed63d Mon Sep 17 00:00:00 2001
From: Dan Stillman <dstillman@zotero.org>
Date: Tue, 28 Feb 2023 00:34:22 -0500
Subject: [PATCH] Match duplicates with same last name but different field
 modes

https://forums.zotero.org/discussion/103307/duplicates-not-being-recognised-as-duplicates
---
 chrome/content/zotero/xpcom/duplicates.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/chrome/content/zotero/xpcom/duplicates.js b/chrome/content/zotero/xpcom/duplicates.js
index 0d89c0bb48..41b2798143 100644
--- a/chrome/content/zotero/xpcom/duplicates.js
+++ b/chrome/content/zotero/xpcom/duplicates.js
@@ -384,12 +384,12 @@ Zotero.Duplicates.prototype._findDuplicates = Zotero.Promise.coroutine(function*
 			for (let i = 0; i < aCreatorRows.length; i++) {
 				let aCreatorRow = aCreatorRows[i];
 				let aLastName = aCreatorRow.lastName;
-				let aFirstInitial = aCreatorRow.firstInitial;
+				let aFirstInitial = aCreatorRow.firstInitial || "";
 				
 				for (let j = 0; j < bCreatorRows.length; j++) {
 					let bCreatorRow = bCreatorRows[j];
 					let bLastName = bCreatorRow.lastName;
-					let bFirstInitial = bCreatorRow.firstInitial;
+					let bFirstInitial = bCreatorRow.firstInitial || "";
 					
 					if (aLastName === bLastName && aFirstInitial === bFirstInitial) {
 						return 1;