[feature-request] net.upnp_tcp_only analogue?

[Hatsuyuki]

I've got a ZyXEL router with broken UPnP. I use the following uTorrent option to make UPnP work:

net.upnp_tcp_only: This option disables automatic forwarding of the listening port for UDP via UPnP, telling µTorrent to forward the port for TCP only. This fixes an issue with some broken routers that overwrite the TCP forwarding with the UDP forwarding.

Is there a similar option in Deluge?