Only resize if length is longer than max_account_name_length

engine/server/application/LoginServer/src/shared/ClientConnection.cpp

@@ -175,7 +175,10 @@ void ClientConnection::validateClient(const std::string & id, const std::string
 	// to avoid having to re-type this stupid var all over the place
 	// ideally we wouldn't copy this here, but it would be a huge pain
 	std::string tmp = trim(id);
-	tmp.resize(MAX_ACCOUNT_NAME_LENGTH); // truncate name after the trim
+
+	if (tmp.length() > MAX_ACCOUNT_NAME_LENGTH) {
+	    tmp.resize(MAX_ACCOUNT_NAME_LENGTH); // truncate name after the trim
+	}
 
 	const std::string trimmedId = tmp;
 	const std::string trimmedKey = trim(key);