Fix /me not going through upon sending an identical message (#3166)

CHANGELOG.md

@@ -7,6 +7,7 @@
 - Minor: Display a system message when reloading subscription emotes to match BTTV/FFZ behavior (#3135)
 - Minor: Added a setting to hide similar messages by any user. (#2716)
 - Minor: Duplicate spaces now count towards the display message length. (#3002)
+- Bugfix: Restored ability to send duplicate `/me` messages. (#3166)
 - Bugfix: Notifications for moderators about other moderators deleting messages can now be disabled. (#3121)
 - Bugfix: Moderation mode and active filters are now preserved when opening a split as a popup. (#3113, #3130)
 - Bugfix: Fixed a bug that caused all badge highlights to use the same color. (#3132, #3134)

src/providers/twitch/TwitchChannel.cpp

@@ -377,6 +377,16 @@ void TwitchChannel::sendMessage(const QString &message)
             if (parsedMessage == this->lastSentMessage_)
             {
                 auto spaceIndex = parsedMessage.indexOf(' ');
+                // If the message starts with either '/' or '.' Twitch will treat it as a command, omitting
+                // first space and only rest of the arguments treated as actual message content
+                // In cases when user sends a message like ". .a b" first character and first space are omitted as well
+                bool ignoreFirstSpace =
+                    parsedMessage.at(0) == '/' || parsedMessage.at(0) == '.';
+                if (ignoreFirstSpace)
+                {
+                    spaceIndex = parsedMessage.indexOf(' ', spaceIndex + 1);
+                }
+
                 if (spaceIndex == -1)
                 {
                     // no spaces found, fall back to old magic character