Remove duplicate ips from nice_interfaces
OpenVPN creates a tun interface having the same IP assigned twice like:
9: tun0: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc ...100
link/none
inet 10.222.111.10 peer 10.222.111.9/32 brd 10.222.111.10 scope global tun0
valid_lft forever preferred_lft forever
inet 10.222.111.10/32 brd 10.222.111.10 scope global tun0
valid_lft forever preferred_lft forever
This interface would generate two identical host candidates with the same value
of foundation.