$ git clone -n https://src.fedoraproject.org/rpms/rust-plotters-svg.git /var/lib/mock/f41-build-side-1-3134888-39763/root/chroot_tmpdir/scmroot/rust-plotters-svg
Cloning into '/var/lib/mock/f41-build-side-1-3134888-39763/root/chroot_tmpdir/scmroot/rust-plotters-svg'...
$ git fetch origin 033a7fbbede427f9588bd9de379fa2167843077a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-plotters-svg
 * [new ref]         033a7fbbede427f9588bd9de379fa2167843077a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 033a7fb no longer needed