Fix pinning between topics.

Telegram/SourceFiles/history/history_item.cpp

@@ -741,6 +741,7 @@ void HistoryItem::indexAsNewItem() {
 		if (const auto types = sharedMediaTypes()) {
 			_history->session().storage().add(Storage::SharedMediaAddNew(
 				_history->peer->id,
+				topicRootId(),
 				types,
 				id));
 			if (types.test(Storage::SharedMediaType::Pinned)) {

Telegram/SourceFiles/storage/storage_shared_media.cpp

@@ -35,15 +35,20 @@ auto SharedMedia::enforceLists(Key key)
 }
 
 void SharedMedia::add(SharedMediaAddNew &&query) {
-	auto peerIt = enforceLists({ query.peerId, MsgId(0) });
-	while (peerIt != end(_lists) && peerIt->first.peerId == query.peerId) {
+	const auto addByIt = [&](const auto i) {
 		for (auto index = 0; index != kSharedMediaTypeCount; ++index) {
 			auto type = static_cast<SharedMediaType>(index);
 			if (query.types.test(type)) {
-				peerIt->second[index].addNew(query.messageId);
+				i->second[index].addNew(query.messageId);
 			}
 		}
-		++peerIt;
+	};
+	addByIt(enforceLists({ query.peerId, MsgId(0) }));
+	const auto topicIt = query.topicRootId
+		? _lists.find({ query.peerId, query.topicRootId })
+		: end(_lists);
+	if (topicIt != end(_lists)) {
+		addByIt(topicIt);
 	}
 }
 

Telegram/SourceFiles/storage/storage_shared_media.h

@@ -41,14 +41,17 @@ using SharedMediaTypesMask = base::enum_mask<SharedMediaType>;
 struct SharedMediaAddNew {
 	SharedMediaAddNew(
 		PeerId peerId,
+		MsgId topicRootId,
 		SharedMediaTypesMask types,
 		MsgId messageId)
 	: peerId(peerId)
+	, topicRootId(topicRootId)
 	, messageId(messageId)
 	, types(types) {
 	}
 
 	PeerId peerId = 0;
+	MsgId topicRootId = 0;
 	MsgId messageId = 0;
 	SharedMediaTypesMask types;