$ git clone -n https://src.fedoraproject.org/rpms/python-cheroot.git /var/lib/mock/f45-build-29896-641/root/chroot_tmpdir/scmroot/python-cheroot
Cloning into '/var/lib/mock/f45-build-29896-641/root/chroot_tmpdir/scmroot/python-cheroot'...
$ git fetch origin 5083abdee1365018519157e8a5a0a092ba1e0741:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-cheroot
 * [new ref]         5083abdee1365018519157e8a5a0a092ba1e0741 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5083abd Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild