$ git clone -n https://src.fedoraproject.org/rpms/golang-github-opendns-vegadns2client.git /var/lib/mock/f41-build-1036209-18712/root/chroot_tmpdir/scmroot/golang-github-opendns-vegadns2client
Cloning into '/var/lib/mock/f41-build-1036209-18712/root/chroot_tmpdir/scmroot/golang-github-opendns-vegadns2client'...
$ git fetch origin bdf5e5bfb8b1104683b11fd4ddb5c354108a54dc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-opendns-vegadns2client
 * [new ref]         bdf5e5bfb8b1104683b11fd4ddb5c354108a54dc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bdf5e5b Fix FTBFS