Added handle of flood errors on requesting to check chat invite.

Fixed #29368.

Telegram/SourceFiles/api/api_chat_invite.cpp

@@ -437,6 +437,12 @@ void CheckChatInvite(
 			}
 		});
 	}, [=](const MTP::Error &error) {
+		if (MTP::IsFloodError(error)) {
+			if (const auto strong = weak.get()) {
+				strong->show(Ui::MakeInformBox(tr::lng_flood_error()));
+			}
+			return;
+		}
 		if (error.code() != 400) {
 			return;
 		}

Telegram/SourceFiles/apiwrap.cpp

@@ -324,7 +324,7 @@ void ApiWrap::checkChatInvite(
 	request(base::take(_checkInviteRequestId)).cancel();
 	_checkInviteRequestId = request(MTPmessages_CheckChatInvite(
 		MTP_string(hash)
-	)).done(std::move(done)).fail(std::move(fail)).send();
+	)).done(std::move(done)).fail(std::move(fail)).handleFloodErrors().send();
 }
 
 void ApiWrap::checkFilterInvite(