I'm unable to search for prefixes with a particular community, this results in: Community malformed: AA:NN
For example:
```
vyos@r1:~$ show ipv6 bgp community 60927:666
% Community malformed: AA:NN
```
I also tried this directly using Quagga but there I get the same issue:
```
root@r1:~# vtysh -c 'show bgp community 60927:666'
% Community malformed: AA:NN
```
As a workaround a made a `community-list` and filtered on that instead.