[meta-virtualization] meta-cloud-services branch names

[Edward Wingate]

Why are the branch names for meta-cloud-services (kilo, juno, havana,
etc.) different than poky and most other meta- layers (daisy, dizzy,
fido, etc.)?  I'm a new Yocto user and up until now, the meta layers I
have been using have the same branch names as poky and I have been
syncing according to branch names.  Is this not necessary with
meta-cloud-services?  Thanks for your help.