$ git clone -n https://src.fedoraproject.org/rpms/ghc-vector-builder.git /var/lib/mock/f33-build-125875-39928/root/chroot_tmpdir/scmroot/ghc-vector-builder
Cloning into '/var/lib/mock/f33-build-125875-39928/root/chroot_tmpdir/scmroot/ghc-vector-builder'...
$ git reset --hard c4d5e6dc333b2d5c7102d59f07119f8cac5c3678
HEAD is now at c4d5e6d update to 0.3.8