PVS-Studio warning V519 for MTASA

void CPacketHandler::Packet_ServerDisconnected (....)
{
  ....
  case ePlayerDisconnectType::BANNED_IP:
    strReason = _("Disconnected: You are banned.\nReason: %s");
    strErrorCode = _E("CD33");
    bitStream.ReadString ( strDuration );
  case ePlayerDisconnectType::BANNED_ACCOUNT:
    strReason =
     _("Disconnected: Account is banned.\nReason: %s");
    strErrorCode = _E("CD34");
    break;
  ....
}

This suspicious code was found in MTASA project by PVS-Studio static code analyzer.
Warning message is:
V519 The 'strReason' variable is assigned values twice successively. Perhaps this is a mistake. Check lines: 558, 561. cpackethandler.cpp 561

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