$ git clone -n http://fedora.riscv.rocks:3000/rpms/R-processx.git /var/lib/mock/f41-build-840074-160507/root/chroot_tmpdir/scmroot/R-processx
Cloning into '/var/lib/mock/f41-build-840074-160507/root/chroot_tmpdir/scmroot/R-processx'...
$ git fetch origin df293633bf5a93d658d92cd9ff20bb8f65fdf302:KOJI_FETCH_HEAD
From http://fedora.riscv.rocks:3000/rpms/R-processx
 * [new ref]         df293633bf5a93d658d92cd9ff20bb8f65fdf302 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at df29363 Turn off bootstrap (riscv64)