From 9eb3a9a403ac68a0effccad5640d8239aeb0b8bf Mon Sep 17 00:00:00 2001
From: levlam <levlam@telegram.org>
Date: Wed, 26 Jan 2022 11:02:20 +0300
Subject: [PATCH] Remove chosen reaction when it is again.

---
 td/generate/scheme/td_api.tl    | 2 +-
 td/telegram/MessagesManager.cpp | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/td/generate/scheme/td_api.tl b/td/generate/scheme/td_api.tl
index 850740164..230789c11 100644
--- a/td/generate/scheme/td_api.tl
+++ b/td/generate/scheme/td_api.tl
@@ -4601,7 +4601,7 @@ editMessageSchedulingState chat_id:int53 message_id:int53 scheduling_state:Messa
 //@description Changes chosen reaction for a message
 //@chat_id Identifier of the chat to which the message belongs
 //@message_id Identifier of the message
-//@reaction Text representation of the chosen reaction, or an empty string to remove reaction
+//@reaction Text representation of the chosen reaction. Can be an empty string or the currently chosen reaction to remove the reaction
 setMessageReaction chat_id:int53 message_id:int53 reaction:string = Ok;
 
 //@description Returns reactions chosen for a message, along with their source
diff --git a/td/telegram/MessagesManager.cpp b/td/telegram/MessagesManager.cpp
index 187deb642..f3c3100c0 100644
--- a/td/telegram/MessagesManager.cpp
+++ b/td/telegram/MessagesManager.cpp
@@ -23755,7 +23755,8 @@ void MessagesManager::set_message_reaction(FullMessageId full_message_id, string
     auto &message_reaction = *it;
     if (message_reaction.is_chosen()) {
       if (message_reaction.get_reaction() == reaction) {
-        return promise.set_value(Unit());
+        // double set removes reaction
+        reaction = string();
       }
       message_reaction.set_is_chosen(false);
       if (message_reaction.is_empty()) {