$ git clone -n https://src.fedoraproject.org/rpms/python-cairocffi.git /var/lib/mock/f40-build-2148072-50889/root/chroot_tmpdir/scmroot/python-cairocffi
Cloning into '/var/lib/mock/f40-build-2148072-50889/root/chroot_tmpdir/scmroot/python-cairocffi'...
$ git fetch origin 7924d369504c5df4e89dabf50773f8e7b32ff6ca:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-cairocffi
 * [new ref]         7924d369504c5df4e89dabf50773f8e7b32ff6ca -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7924d36 Fix the way flake8 and isort are sedded out