Description of problem:

Using copr, after the build process the Repo Download link
doesn't work in an ipv6 only setup and we are at the end of 2020.

Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:
1. build any package on copr (or use any already build package)
2. follow the download link in the 'Repo Download' tab
3. remove any ipv4 address from your client host and follow the download link again.

Actual results:
curl https://copr.fedorainfracloud.org/coprs/alijkl/etcd/repo/epel-8/alijkl-etcd-epel-8.repo
curl: (7) Couldn't connect to server


Expected results:
the repo file should be available via ipv6
and of course the contain as well (the rpm data and metadata) should be reachable via ipv6.
 
Additional info:
while 'https://download.copr.fedorainfracloud.org' is reachable via ipv6
trying to access the real contain (the location epel-8-$basearch/ in my case)
redirect to https://copr-be.cloud.fedoraproject.org which not reachable via ipv6 as well.

 curl https://copr-be.cloud.fedoraproject.org
curl: (7) Couldn't connect to server