$ git clone -n http://fedora.riscv.rocks:3000/rpms/R-profvis.git /var/lib/mock/f41-build-840075-160507/root/chroot_tmpdir/scmroot/R-profvis
Cloning into '/var/lib/mock/f41-build-840075-160507/root/chroot_tmpdir/scmroot/R-profvis'...
$ git fetch origin 6affd739368cf7c1c8f701c61c90466111366669:KOJI_FETCH_HEAD
From http://fedora.riscv.rocks:3000/rpms/R-profvis
 * [new ref]         6affd739368cf7c1c8f701c61c90466111366669 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6affd73 Turn off bootstrap (riscv64)