$ git clone -n http://fedora.riscv.rocks:3000/rpms/clang17.git /var/lib/mock/f42-build-864459-172322/root/chroot_tmpdir/scmroot/clang17
Cloning into '/var/lib/mock/f42-build-864459-172322/root/chroot_tmpdir/scmroot/clang17'...
$ git fetch origin 4b68896ed6917179dddfae61508b7e8259a6ce24:KOJI_FETCH_HEAD
From http://fedora.riscv.rocks:3000/rpms/clang17
 * [new ref]         4b68896ed6917179dddfae61508b7e8259a6ce24 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4b68896 Add support for riscv64