$ git clone -n https://src.fedoraproject.org/rpms/libstatgrab.git /var/lib/mock/f45-build-17055-495/root/chroot_tmpdir/scmroot/libstatgrab
Cloning into '/var/lib/mock/f45-build-17055-495/root/chroot_tmpdir/scmroot/libstatgrab'...
$ git fetch origin 7a72d0781b38d720424cc9ac28aae2617e533f05:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libstatgrab
 * [new ref]         7a72d0781b38d720424cc9ac28aae2617e533f05 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7a72d07 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild