From 9141b8e68b1186217db29d5560dbb3025e99b167 Mon Sep 17 00:00:00 2001
From: Sebastian Wolf <sebastian@ygriega.de>
Date: Mon, 16 Nov 2020 16:52:48 +0100
Subject: [PATCH] Fix crash when forwarding to some chats, introduce iterative
 init

---
 qml/pages/ChatPage.qml | 16 +++++++++++-----
 src/chatmodel.cpp      |  2 +-
 2 files changed, 12 insertions(+), 6 deletions(-)

diff --git a/qml/pages/ChatPage.qml b/qml/pages/ChatPage.qml
index ace6181..b5d89d1 100644
--- a/qml/pages/ChatPage.qml
+++ b/qml/pages/ChatPage.qml
@@ -42,6 +42,7 @@ Page {
     property var chatGroupInformation;
     property int chatOnlineMemberCount: 0;
     property var emojiProposals;
+    property bool iterativeInitialization: false;
     readonly property bool userIsMember: (isPrivateChat && chatInformation["@type"]) || // should be optimized
                                 (isBasicGroup || isSuperGroup) && (
                                     (chatGroupInformation.status["@type"] === "chatMemberStatusMember")
@@ -349,11 +350,16 @@ Page {
         target: chatModel
         onMessagesReceived: {
             console.log("[ChatPage] Messages received, view has " + chatView.count + " messages, setting view to index " + modelIndex + ", own messages were read before index " + lastReadSentIndex);
-            if(totalCount === 0) {
-                console.log("[ChatPage] actually, skipping that: No Messages in Chat.");
-                chatView.positionViewAtEnd();
-                chatPage.loading = false;
-                return;
+            if (totalCount === 0) {
+                if (chatPage.iterativeInitialization) {
+                    chatPage.iterativeInitialization = false;
+                    console.log("[ChatPage] actually, skipping that: No Messages in Chat.");
+                    chatView.positionViewAtEnd();
+                    chatPage.loading = false;
+                    return;
+                } else {
+                    chatPage.iterativeInitialization = true;
+                }
             }
 
             chatView.lastReadSentIndex = lastReadSentIndex;
diff --git a/src/chatmodel.cpp b/src/chatmodel.cpp
index 02d448f..e85c726 100644
--- a/src/chatmodel.cpp
+++ b/src/chatmodel.cpp
@@ -197,7 +197,7 @@ void ChatModel::handleMessagesReceived(const QVariantList &messages, int totalCo
             this->messagesMutex.unlock();
 
             // First call only returns a few messages, we need to get a little more than that...
-            if ((this->messagesToBeAdded.size() + this->messages.size()) < 10 && !this->inReload) {
+            if (!this->messagesToBeAdded.isEmpty() && (this->messagesToBeAdded.size() + this->messages.size()) < 10 && !this->inReload) {
                 LOG("Only a few messages received in first call, loading more...");
                 this->inReload = true;
                 this->tdLibWrapper->getChatHistory(this->chatId, this->messagesToBeAdded.first().toMap().value(ID).toLongLong());