$ git clone -n https://src.fedoraproject.org/rpms/python-affine.git /var/lib/mock/f45-build-29316-637/root/chroot_tmpdir/scmroot/python-affine
Cloning into '/var/lib/mock/f45-build-29316-637/root/chroot_tmpdir/scmroot/python-affine'...
$ git fetch origin 491ae4b125030f69c1003954e5b2446c9e62239c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-affine
 * [new ref]         491ae4b125030f69c1003954e5b2446c9e62239c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 491ae4b Update to 3.0.1 upstream release