From d112d6b11fe0ad49835c2e31d132364333b94dc3 Mon Sep 17 00:00:00 2001
From: Nicolas Werner <nicolas.werner@hotmail.de>
Date: Sat, 6 Nov 2021 00:40:39 +0100
Subject: [PATCH] Fix crash when clearing empty timeline

---
 src/Cache.cpp | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/Cache.cpp b/src/Cache.cpp
index 58eb2630..b2db9edd 100644
--- a/src/Cache.cpp
+++ b/src/Cache.cpp
@@ -3182,9 +3182,11 @@ Cache::clearTimeline(const std::string &room_id)
             break;
     }
 
-    do {
-        lmdb::cursor_del(msgCursor);
-    } while (msgCursor.get(indexVal, val, MDB_PREV));
+    if (!start) {
+        do {
+            lmdb::cursor_del(msgCursor);
+        } while (msgCursor.get(indexVal, val, MDB_PREV));
+    }
 
     cursor.close();
     msgCursor.close();