$ git clone -n https://src.fedoraproject.org/rpms/ghc-vector-th-unbox.git /var/lib/mock/f31-build-117073-34599/root/chroot_tmpdir/scmroot/ghc-vector-th-unbox
Cloning into '/var/lib/mock/f31-build-117073-34599/root/chroot_tmpdir/scmroot/ghc-vector-th-unbox'...
$ git reset --hard 87bf629e4a5ccf5925d6db6de037fb02f2a1ece0
HEAD is now at 87bf629 BR prof for lib and static for executable