I believe the best solution would be to link to koji for the phase when build it built, linking to a finished jenkins job makes users confused.
See https://pagure.io/fedora-ci/general/issue/188#comment-705983
For details
"queued" and "running" still points to Jenkins, but complete and error points to Koji now.
Metadata Update from @msrb: - Issue status updated to: Closed (was: Open)