$ git clone -n http://fedora.riscv.rocks:3000/rpms/llvm19.git /var/lib/mock/f42-build-3589370-46971/root/chroot_tmpdir/scmroot/llvm19
Cloning into '/var/lib/mock/f42-build-3589370-46971/root/chroot_tmpdir/scmroot/llvm19'...
$ git fetch origin c6a1c14eeb865f2a0f9a674baf9256d425e92e2e:KOJI_FETCH_HEAD
From http://fedora.riscv.rocks:3000/rpms/llvm19
 * [new ref]         c6a1c14eeb865f2a0f9a674baf9256d425e92e2e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c6a1c14 Set triplet for riscv64