$ git clone -n https://src.fedoraproject.org/rpms/python-sievelib.git /var/lib/mock/f40-build-2232019-53318/root/chroot_tmpdir/scmroot/python-sievelib
Cloning into '/var/lib/mock/f40-build-2232019-53318/root/chroot_tmpdir/scmroot/python-sievelib'...
$ git fetch origin 31d97696d1b25062355e23c03fbc9e2fa0606deb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-sievelib
 * [new ref]         31d97696d1b25062355e23c03fbc9e2fa0606deb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 31d9769 Remove useless dependency on future