$ git clone -n https://src.fedoraproject.org/rpms/ghc-vector.git /var/lib/mock/f31-build-112613-34295/root/chroot_tmpdir/scmroot/ghc-vector
Cloning into '/var/lib/mock/f31-build-112613-34295/root/chroot_tmpdir/scmroot/ghc-vector'...
$ git reset --hard e742a6f037dbff0f7a10bf532ee511d7ffd7399f
HEAD is now at e742a6f BR prof for lib and static for executable