$ git clone -n https://src.fedoraproject.org/rpms/patchutils.git /var/lib/mock/f45-build-21436-584/root/chroot_tmpdir/scmroot/patchutils
Cloning into '/var/lib/mock/f45-build-21436-584/root/chroot_tmpdir/scmroot/patchutils'...
$ git fetch origin df2dfbde4e09862017451302663dc1fb3ba29e78:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/patchutils
 * [new ref]         df2dfbde4e09862017451302663dc1fb3ba29e78 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at df2dfbd Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild