$ git clone -n http://fedora.riscv.rocks:3000/rpms/kernel.git /var/lib/mock/f40-build-807835-145300/root/chroot_tmpdir/scmroot/kernel
Cloning into '/var/lib/mock/f40-build-807835-145300/root/chroot_tmpdir/scmroot/kernel'...
$ git fetch origin 45c0685ba3332b67cc9b612fe8cf3f44b1316651:KOJI_FETCH_HEAD
From http://fedora.riscv.rocks:3000/rpms/kernel
 * [new ref]             45c0685ba3332b67cc9b612fe8cf3f44b1316651 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 45c0685ba Add LLD (ld.lld) for riscv64