- this->topic.assign(ntopic, 0, ServerInstance->Config->Limits.MaxTopic);
- this->setby.assign(ServerInstance->Config->FullHostInTopic ? u->GetFullHost() : u->nick, 0, 128);
- this->WriteChannel(u, "TOPIC %s :%s", this->name.c_str(), this->topic.c_str());
- this->topicset = ServerInstance->Time();
+ // Send a TOPIC message to the channel only if the new topic text differs
+ if (this->topic != ntopic)
+ {
+ this->topic = ntopic;
+ this->WriteChannel(u, "TOPIC %s :%s", this->name.c_str(), this->topic.c_str());
+ }
+
+ // Always update setter and set time
+ if (!setter)
+ setter = ServerInstance->Config->FullHostInTopic ? &u->GetFullHost() : &u->nick;
+ this->setby.assign(*setter, 0, 128);
+ this->topicset = topicts;