$ git clone -n http://fedora.riscv.rocks:3000/rpms/grubby.git /var/lib/mock/f39-build-730314-102665/root/chroot_tmpdir/scmroot/grubby
Cloning into '/var/lib/mock/f39-build-730314-102665/root/chroot_tmpdir/scmroot/grubby'...
$ git fetch origin 5a6954449f489b941a910aedfcf206c7c52136dd:KOJI_FETCH_HEAD
From http://fedora.riscv.rocks:3000/rpms/grubby
 * [new ref]         5a6954449f489b941a910aedfcf206c7c52136dd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5a69544 Update BRs for riscv64