$ git clone -n https://src.fedoraproject.org/rpms/libkcapi.git /var/lib/mock/f45-build-16396-486/root/chroot_tmpdir/scmroot/libkcapi
Cloning into '/var/lib/mock/f45-build-16396-486/root/chroot_tmpdir/scmroot/libkcapi'...
$ git fetch origin af20f4943914f131f03b8b26e864d929976690b5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libkcapi
 * [new ref]         af20f4943914f131f03b8b26e864d929976690b5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at af20f49 Apply pending upstream patch to fix the auxiliary test