$ git clone -n https://src.fedoraproject.org/rpms/safeint.git /var/lib/mock/f45-build-35517-695/root/chroot_tmpdir/scmroot/safeint
Cloning into '/var/lib/mock/f45-build-35517-695/root/chroot_tmpdir/scmroot/safeint'...
$ git fetch origin 21dd458c7291d11f02d365353eab321f30edb3e1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/safeint
 * [new ref]         21dd458c7291d11f02d365353eab321f30edb3e1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 21dd458 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild