$ git clone -n https://src.fedoraproject.org/rpms/python-responses.git /var/lib/mock/f45-build-32750-662/root/chroot_tmpdir/scmroot/python-responses
Cloning into '/var/lib/mock/f45-build-32750-662/root/chroot_tmpdir/scmroot/python-responses'...
$ git fetch origin a79d82c845ae142bf1a8410b8129d87863851d25:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-responses
 * [new ref]         a79d82c845ae142bf1a8410b8129d87863851d25 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a79d82c update to 0.26.2