$ git clone -n https://src.fedoraproject.org/rpms/dnsviz.git /var/lib/mock/f41-build-side-2-python-2734058-30827/root/chroot_tmpdir/scmroot/dnsviz
Cloning into '/var/lib/mock/f41-build-side-2-python-2734058-30827/root/chroot_tmpdir/scmroot/dnsviz'...
$ git fetch origin 8331ccbf5877ea75802847b46191c13780c84980:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dnsviz
 * [new ref]         8331ccbf5877ea75802847b46191c13780c84980 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8331ccb use python-cryptography instead of python-m2crypto