$ git clone -n http://fedora.riscv.rocks:3000/rpms/ghc-echo.git /var/lib/mock/f38-build-725539-99673/root/chroot_tmpdir/scmroot/ghc-echo
Cloning into '/var/lib/mock/f38-build-725539-99673/root/chroot_tmpdir/scmroot/ghc-echo'...
$ git fetch origin 4da16bf97ceb39ccdeb0d3f9f414c0f1616d61d9:KOJI_FETCH_HEAD
From http://fedora.riscv.rocks:3000/rpms/ghc-echo
 * [new ref]         4da16bf97ceb39ccdeb0d3f9f414c0f1616d61d9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4da16bf Rebuilt for Fedora/RISCV (riscv64); adding .rvreX to Release: