From 34cca18009e8cc1dded42f037496ec0d36addbce Mon Sep 17 00:00:00 2001
From: Fabian Schlenz <mail@fabianonline.de>
Date: Wed, 31 Aug 2016 06:55:22 +0200
Subject: [PATCH] The check for the last message ID should ignore channels,
 because they have their own numbering system which could result in numbers
 larger than your own message IDs which leads to downloads of lots of empty
 messages which then block further backups.

---
 .../java/de/fabianonline/telegram_backup/DownloadManager.java | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/main/java/de/fabianonline/telegram_backup/DownloadManager.java b/src/main/java/de/fabianonline/telegram_backup/DownloadManager.java
index 217dd9c..c0977e7 100644
--- a/src/main/java/de/fabianonline/telegram_backup/DownloadManager.java
+++ b/src/main/java/de/fabianonline/telegram_backup/DownloadManager.java
@@ -103,8 +103,8 @@ public class DownloadManager {
 			dialog_limit);
 		logger.debug("Got {} dialogs", dialogs.getDialogs().size());
 		for (TLDialog d : dialogs.getDialogs()) {
-			if (d.getTopMessage() > max_message_id) {
-				logger.trace("Updating top message id: {} => {}", max_message_id, d.getTopMessage());
+			if (d.getTopMessage() > max_message_id && ! (d.getPeer() instanceof TLPeerChannel)) {
+				logger.trace("Updating top message id: {} => {}. Dialog type: {}", max_message_id, d.getTopMessage(), d.getPeer().getClass().getName());
 				max_message_id = d.getTopMessage();
 			}
 		}