Description of problem: when building images we need to ensure that we can use and update url lines. anaconda in Fedora requires the use of url to be able to successfully install. this is needed for f21 cloud images.
This bug appears to have been reported against 'rawhide' during the Fedora 22 development cycle. Changing version to '22'. More information and reason for this action is here: https://fedoraproject.org/wiki/Fedora_Program_Management/HouseKeeping/Fedora22
This was fixed by this upstream commit, which was included in koji-1.10 https://git.fedorahosted.org/cgit/koji/commit/?id=d3eee76ce76bf989e00acff36b7788d9facfcc58