$ git clone -n https://src.fedoraproject.org/rpms/rust-konst.git /var/lib/mock/f45-build-42792-796/root/chroot_tmpdir/scmroot/rust-konst
Cloning into '/var/lib/mock/f45-build-42792-796/root/chroot_tmpdir/scmroot/rust-konst'...
$ git fetch origin bf080eba6cfcf9c18dd5c15e11f1c358abbdf567:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-konst
 * [new ref]         bf080eba6cfcf9c18dd5c15e11f1c358abbdf567 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bf080eb Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild