$ git clone -n https://src.fedoraproject.org/rpms/pslib.git /var/lib/mock/f45-build-28996-634/root/chroot_tmpdir/scmroot/pslib
Cloning into '/var/lib/mock/f45-build-28996-634/root/chroot_tmpdir/scmroot/pslib'...
$ git fetch origin ab64640aad19333fd286b55a0667aa113661ef7a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pslib
 * [new ref]         ab64640aad19333fd286b55a0667aa113661ef7a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ab64640 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild