Don't offer hello-sticker to user you've blocked.

Telegram/SourceFiles/history/history_inner_widget.cpp

@@ -4275,32 +4275,32 @@ auto HistoryInner::findViewForPinnedTracking(int top) const
 	return { nullptr, 0 };
 }
 
-void HistoryInner::refreshAboutView() {
+void HistoryInner::refreshAboutView(bool force) {
+	const auto refresh = [&] {
+		if (force) {
+			_aboutView = nullptr;
+		}
+		if (!_aboutView) {
+			_aboutView = std::make_unique<HistoryView::AboutView>(
+				_history,
+				_history->delegateMixin()->delegate());
+		}
+	};
 	if (const auto user = _peer->asUser()) {
 		if (const auto info = user->botInfo.get()) {
-			if (!_aboutView) {
-				_aboutView = std::make_unique<HistoryView::AboutView>(
-					_history,
-					_history->delegateMixin()->delegate());
-			}
+			refresh();
 			if (!info->inited) {
 				session().api().requestFullPeer(user);
 			}
 		} else if (user->meRequiresPremiumToWrite()
 			&& !user->session().premium()
 			&& !historyHeight()) {
-			if (!_aboutView) {
-				_aboutView = std::make_unique<HistoryView::AboutView>(
-					_history,
-					_history->delegateMixin()->delegate());
-			}
+			refresh();
 		} else if (!historyHeight()) {
 			if (!user->isFullLoaded()) {
 				session().api().requestFullPeer(user);
-			} else if (!_aboutView) {
-				_aboutView = std::make_unique<HistoryView::AboutView>(
-					_history,
-					_history->delegateMixin()->delegate());
+			} else {
+				refresh();
 			}
 		}
 	}

Telegram/SourceFiles/history/history_inner_widget.h

@@ -201,7 +201,7 @@ public:
 	[[nodiscard]] std::pair<Element*, int> findViewForPinnedTracking(
 		int top) const;
 
-	void refreshAboutView();
+	void refreshAboutView(bool force = false);
 	void notifyMigrateUpdated();
 
 	// Ui::AbstractTooltipShower interface.

Telegram/SourceFiles/history/history_widget.cpp

@@ -8017,13 +8017,18 @@ void HistoryWidget::handlePeerUpdate() {
 		}
 	}
 	if (!_showAnimation) {
-		if (_unblock->isHidden() == isBlocked()
+		const auto blockChanged = (_unblock->isHidden() == isBlocked());
+		if (blockChanged
 			|| (!isBlocked() && _joinChannel->isHidden() == isJoinChannel())) {
 			resize = true;
 		}
 		if (updateCanSendMessage()) {
 			resize = true;
 		}
+		if (blockChanged) {
+			_list->refreshAboutView(true);
+			_list->updateBotInfo();
+		}
 		updateControlsVisibility();
 		if (resize) {
 			updateControlsGeometry();

Telegram/SourceFiles/history/view/history_view_about_view.cpp

@@ -245,6 +245,8 @@ bool AboutView::refresh() {
 			} else if (user->meRequiresPremiumToWrite()
 				&& !user->session().premium()) {
 				setItem(makePremiumRequired(), nullptr);
+			} else if (user->isBlocked()) {
+				setItem(makeBlocked(), nullptr);
 			} else {
 				makeIntro(user);
 			}
@@ -393,4 +395,17 @@ AdminLog::OwnedItem AboutView::makePremiumRequired() {
 	return result;
 }
 
+AdminLog::OwnedItem AboutView::makeBlocked() {
+	const auto item = _history->makeMessage({
+		.id = _history->nextNonHistoryEntryId(),
+		.flags = (MessageFlag::FakeAboutView
+			| MessageFlag::FakeHistoryItem
+			| MessageFlag::Local),
+		.from = _history->peer->id,
+	}, PreparedServiceText{
+		{ tr::lng_chat_intro_default_title(tr::now) }
+	});
+	return AdminLog::OwnedItem(_delegate, item);
+}
+
 } // namespace HistoryView

Telegram/SourceFiles/history/view/history_view_about_view.h

@@ -36,6 +36,7 @@ public:
 private:
 	[[nodiscard]] AdminLog::OwnedItem makeAboutBot(not_null<BotInfo*> info);
 	[[nodiscard]] AdminLog::OwnedItem makePremiumRequired();
+	[[nodiscard]] AdminLog::OwnedItem makeBlocked();
 	void makeIntro(not_null<UserData*> user);
 	void setItem(AdminLog::OwnedItem item, DocumentData *sticker);
 	void setHelloChosen(not_null<DocumentData*> sticker);