$ git clone -n https://src.fedoraproject.org/rpms/R-plogr.git /var/lib/mock/f45-build-6301-347/root/chroot_tmpdir/scmroot/R-plogr
Cloning into '/var/lib/mock/f45-build-6301-347/root/chroot_tmpdir/scmroot/R-plogr'...
$ git fetch origin a996ef8a4d23c0c3fbafcf1337c329fb2a4813a2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-plogr
 * [new ref]         a996ef8a4d23c0c3fbafcf1337c329fb2a4813a2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a996ef8 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild