From be5c65c24c19192c8d576a3c7305c1b66afa2a2f Mon Sep 17 00:00:00 2001
From: gnosygnu <gnosygnu@gmail.com>
Date: Sun, 11 Aug 2019 14:28:51 -0400
Subject: [PATCH] User.Cfg: Ignore duplicate keys in user cache [#534]

---
 400_xowa/src/gplx/xowa/files/caches/Xou_cache_tbl.java | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/400_xowa/src/gplx/xowa/files/caches/Xou_cache_tbl.java b/400_xowa/src/gplx/xowa/files/caches/Xou_cache_tbl.java
index 96acf34cd..427134b51 100644
--- a/400_xowa/src/gplx/xowa/files/caches/Xou_cache_tbl.java
+++ b/400_xowa/src/gplx/xowa/files/caches/Xou_cache_tbl.java
@@ -92,7 +92,12 @@ public class Xou_cache_tbl implements Rls_able {
 		try {
 			while (rdr.Move_next()) {
 				Xou_cache_itm itm = new_itm(rdr);
-				hash.Add(itm.Lnki_key(), itm);
+				if (hash.Has(itm.Lnki_key())) { // dupes shouldn't happen, but has been reported; ISSUE#:534; DATE:2019-08-11
+					Gfo_usr_dlg_.Instance.Note_many("", "", "user_cache: duplicate key; key=~{0} count=~{1}", itm.Lnki_key(), hash.Count());
+				}
+				else {
+					hash.Add(itm.Lnki_key(), itm);
+				}
 			}
 		}
 		finally {rdr.Rls();}