$ git clone -n https://src.fedoraproject.org/rpms/rust-wax.git /var/lib/mock/f45-build-46143-831/root/chroot_tmpdir/scmroot/rust-wax
Cloning into '/var/lib/mock/f45-build-46143-831/root/chroot_tmpdir/scmroot/rust-wax'...
$ git fetch origin 430411b3a26c1ac43025dcaacfbfc6933d2ee582:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-wax
 * [new ref]         430411b3a26c1ac43025dcaacfbfc6933d2ee582 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 430411b Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild