$ git clone -n https://src.fedoraproject.org/rpms/python-dns-lexicon.git /var/lib/mock/f40-build-2069565-49298/root/chroot_tmpdir/scmroot/python-dns-lexicon
Cloning into '/var/lib/mock/f40-build-2069565-49298/root/chroot_tmpdir/scmroot/python-dns-lexicon'...
$ git fetch origin c327bd5beecd8faf25658dd839df3cf9049cd318:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-dns-lexicon
 * [new ref]         c327bd5beecd8faf25658dd839df3cf9049cd318 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c327bd5 Update to 3.17.0 - remove ddns and duckdns because apparently upstream removed them