+++ This bug was initially created as a clone of Bug #1015963 +++ spacewalk-clone-by-date should have an option that allows you to specify a list of errata that should be cloned into the new channel. If you do, only those errata will be cloned (and their dependencies unless you specify otherwise).
Committing to Spacewalk master: 82c8e967fa6aa0c2466e03955c6b9c3e5039b689
And this commit to fix pylint errors: 649907ee8fb387e5c8fccc74bb69532e5e4eb889
And another pylint error: a914d034480af0d709717cfaf816e943d4ae0d6a
Fixing "NoneType is not subscriptable" error if no errata specified: 3889076562bc39bf9d9dec008f0f271aaef558c3
Spacewalk 2.2 has been released: https://fedorahosted.org/spacewalk/wiki/ReleaseNotes22