$ git clone -n http://fedora.riscv.rocks:3000/rpms/R-bench.git /var/lib/mock/f41-build-840030-160499/root/chroot_tmpdir/scmroot/R-bench
Cloning into '/var/lib/mock/f41-build-840030-160499/root/chroot_tmpdir/scmroot/R-bench'...
$ git fetch origin 8824b99b869e2205fbf79df6340a94bbbbde9647:KOJI_FETCH_HEAD
From http://fedora.riscv.rocks:3000/rpms/R-bench
 * [new ref]         8824b99b869e2205fbf79df6340a94bbbbde9647 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8824b99 Disable tests