$ git clone -n https://src.fedoraproject.org/rpms/python-sievelib.git /var/lib/mock/f45-build-32935-665/root/chroot_tmpdir/scmroot/python-sievelib
Cloning into '/var/lib/mock/f45-build-32935-665/root/chroot_tmpdir/scmroot/python-sievelib'...
$ git fetch origin 89e0052ec4e114bf71d0ce2569c8e0cec222f7b3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-sievelib
 * [new ref]         89e0052ec4e114bf71d0ce2569c8e0cec222f7b3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 89e0052 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild