For nodes with several known IPv6 addresses, only one IPv6 address is attempted to connect with

[rednil]

Description

I am behind a "carrier grade NAT", so the public IPv4 address of my node is not reachable from outside. One of its global IPv6 addresses is reachable, but friend nodes are not connecting to it (although it is in the list of known adresses).
As far as I can see RetroShare loops through all IPv4 addresses with connection attempts but stops after the first IPv6 address.

Expected Behaviour

RetroShare should loop through all known IPv6 addresses of a friend node with connection attempts.

Relevance

As far as I understand, having several IPv6 addresses (some of them not reachable from the outside) is pretty normal, like with IPv4. Ubuntu in default settings creates some additional temporary address for privacy reasons (for outgoing requests) and on my PC there is even a third global address I have no clue where it is coming from.