$ git clone -n https://src.fedoraproject.org/rpms/python-dns.git /var/lib/mock/f43-build-59189892-6571608/root/chroot_tmpdir/scmroot/python-dns
Cloning into '/var/lib/mock/f43-build-59189892-6571608/root/chroot_tmpdir/scmroot/python-dns'...
$ git fetch origin 505cf8c96fb28b8f8f0faaab2f8243b3baffc96c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-dns
 * [new ref]         505cf8c96fb28b8f8f0faaab2f8243b3baffc96c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 505cf8c Make sure each extra subpackage obsoletes the corresponding subpackage from python3-dnspython