$ git clone -n http://fedora.riscv.rocks:3000/rpms/kernel.git /var/lib/mock/f41-p550-874754-178207/root/chroot_tmpdir/scmroot/kernel
Cloning into '/var/lib/mock/f41-p550-874754-178207/root/chroot_tmpdir/scmroot/kernel'...
$ git fetch origin 4d7a25442be89e305469b96de8d0d7cfad503913:KOJI_FETCH_HEAD
From http://fedora.riscv.rocks:3000/rpms/kernel
 * [new ref]             4d7a25442be89e305469b96de8d0d7cfad503913 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
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Updating files: 100% (483/483), done.
HEAD is now at 4d7a25442 Update to 6.6.79