$ git clone -n https://src.fedoraproject.org/rpms/rust-rand_xorshift0.3.git /var/lib/mock/f45-build-44264-812/root/chroot_tmpdir/scmroot/rust-rand_xorshift0.3
Cloning into '/var/lib/mock/f45-build-44264-812/root/chroot_tmpdir/scmroot/rust-rand_xorshift0.3'...
$ git fetch origin 8d0769ef3b2d732e8cd5cd8f04a94741f77a95cc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-rand_xorshift0.3
 * [new ref]         8d0769ef3b2d732e8cd5cd8f04a94741f77a95cc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8d0769e Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild