When
using BGP unnumbered (`extended-nexthop`) and `route-reflector-client`
are set on a neighbor, the commit fails with the following error:
```
[ protocols bgp 654435 neighbor eth0 address-family ipv4-unicast route-reflector-client ]
sh: line 0: [: 654435: unary operator expected
[ protocols bgp 654435 neighbor eth0 address-family ipv6-unicast route-reflector-client ]
sh: line 0: [: 654435: unary operator expected
```
Example configuration:
```
set protocols bgp 654435 neighbor eth0 address-family ipv4-unicast nexthop-self force
set protocols bgp 654435 neighbor eth0 address-family ipv4-unicast route-reflector-client
set protocols bgp 654435 neighbor eth0 address-family ipv6-unicast nexthop-self force
set protocols bgp 654435 neighbor eth0 address-family ipv6-unicast route-reflector-client
set protocols bgp 654435 neighbor eth0 address-family ipv6-unicast soft-reconfiguration inbound
set protocols bgp 654435 neighbor eth0 capability extended-nexthop
set protocols bgp 654435 neighbor eth0 interface remote-as '654435'
set protocols bgp 654435 neighbor eth0 interface v6only
```
Version:
```
vyos@vyos# run show version
Version: VyOS 1.3-rolling-202101071430
Release Train: equuleus
Built by:
[email protected]
Built on: Thu 07 Jan 2021 14:30 UTC
Build UUID: 710ade27-8981-49da-ac27-47acc9b4f413
Build Commit ID: 432f3f96927a54
```