$ git clone -n https://src.fedoraproject.org/rpms/llvm6.0.git /var/lib/mock/f33-build-559639-65751/root/chroot_tmpdir/scmroot/llvm6.0
Cloning into '/var/lib/mock/f33-build-559639-65751/root/chroot_tmpdir/scmroot/llvm6.0'...
$ git reset --hard 15b65c1ef30698ceaeaa1016fd59b6b5a488f42f
HEAD is now at 15b65c1 - Rebuilt for https://fedoraproject.org/wiki/Fedora_32_Mass_Rebuild