$ git clone -n https://src.fedoraproject.org/rpms/rust-rand_xorshift.git /var/lib/mock/f45-build-44268-812/root/chroot_tmpdir/scmroot/rust-rand_xorshift
Cloning into '/var/lib/mock/f45-build-44268-812/root/chroot_tmpdir/scmroot/rust-rand_xorshift'...
$ git fetch origin edde245fec44b11f1c4465cbf95e777fd21e9e03:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-rand_xorshift
 * [new ref]         edde245fec44b11f1c4465cbf95e777fd21e9e03 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at edde245 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild