Unable to change a private channel to make it public

[sohomang]

Background

No API command permits to change a private channel to make it public (and vice versa). Some wallets like Zap iOS open channels as private by default and this characteristic seems unalterable for now.

Your environment

• lnd version 0.6.1-beta
• bitcoind version v0.18.0
• Raspbian GNU/Linux 9 (Stretch)

Steps to reproduce

• Open a channel from GUI/CLI and make it private (somehow)
• ???
• Profit

Expected behaviour

A command should exist to let users toggle their channels' privacy settings while they're open/active.

Actual behaviour

Users have to closechannel then openchannel again to reset their private setting, which pollutes the blockchain with 2 transactions.

[Roasbeef]

It isn't possible to do so atm at the protocol level. This would require protocol changes. A better place to open this issue is at: https://github.com/lightningnetwork/lightning-rfc

Thanks!