extra-deps submodules

Hello! I have a library with huge submodule in it (nixpkgs). When I'm trying to use my library in other project, stack tries to fetch all submodules of my library with command 

```
git submodule update --init --recursive
```

It is ok, but not for huge submodule like nixpkgs. Is there any way to say stack run this command with flag?

```
--depth 1
```

Thanks!