Connector/C++ aborts client process on server session-tracking packet via std::stoi

QueryProtocol::handleStateChange reads the session-tracking system-variable entry from an OK packet, compares it against the literal "auto_increment_increment", and then calls std::stoi on that same string. The string is the variable NAME, not its value, so whenever the branch is taken std::stoi is …

      if (mysql_session_track_get_first(connection, static_cast<enum capi::enum_session_state_type>(type), &value, &len) == 0)
      {
        std::string str(value, len);

        switch (type) {
        case StateChange::SESSION_TRACK_SYSTEM_VARIABLES:
          if …