$ git clone -n http://fedora.riscv.rocks:3000/rpms/R-utf8.git /var/lib/mock/f41-build-838654-159768/root/chroot_tmpdir/scmroot/R-utf8
Cloning into '/var/lib/mock/f41-build-838654-159768/root/chroot_tmpdir/scmroot/R-utf8'...
$ git fetch origin 397812d46fb535df0d2d030c0f27b135471ecec1:KOJI_FETCH_HEAD
From http://fedora.riscv.rocks:3000/rpms/R-utf8
 * [new ref]         397812d46fb535df0d2d030c0f27b135471ecec1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 397812d Bootstrap (riscv64)