$ git clone -n http://fedora.riscv.rocks:3000/rpms/llvm.git /var/lib/mock/f40-build-735177-106236/root/chroot_tmpdir/scmroot/llvm
Cloning into '/var/lib/mock/f40-build-735177-106236/root/chroot_tmpdir/scmroot/llvm'...
$ git fetch origin bbe4d4eaafdcfba7f5e58402f148fcd45acb8596:KOJI_FETCH_HEAD
From http://fedora.riscv.rocks:3000/rpms/llvm
 * [new ref]         bbe4d4eaafdcfba7f5e58402f148fcd45acb8596 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bbe4d4e Add support for riscv64