$ git clone -n http://fedora.riscv.rocks:3000/rpms/R-purrr.git /var/lib/mock/f41-build-821304-152515/root/chroot_tmpdir/scmroot/R-purrr
Cloning into '/var/lib/mock/f41-build-821304-152515/root/chroot_tmpdir/scmroot/R-purrr'...
$ git fetch origin 27ce11db1401d24ad05d724056f21678e3259494:KOJI_FETCH_HEAD
From http://fedora.riscv.rocks:3000/rpms/R-purrr
 * [new ref]         27ce11db1401d24ad05d724056f21678e3259494 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 27ce11d Bootstrap (riscv64)