$ git clone -n http://fedora.riscv.rocks:3000/rpms/kernel.git /var/lib/mock/f41-build-860766-169194/root/chroot_tmpdir/scmroot/kernel
Cloning into '/var/lib/mock/f41-build-860766-169194/root/chroot_tmpdir/scmroot/kernel'...
$ git fetch origin af2ee6113eb2ca87cf443fbbb2dc6d5909b9d336:KOJI_FETCH_HEAD
From http://fedora.riscv.rocks:3000/rpms/kernel
 * [new ref]             af2ee6113eb2ca87cf443fbbb2dc6d5909b9d336 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at af2ee6113 Disable Rust for riscv64