Prisma-client-js: `.count()` returns `null` for empty tables

[madebysid]

To reproduce:

1. Create a blank project with prisma2 init
2. Without seeding the database, create a script with these contents:

import { Photon } from "@generated/photon";

const photon = new Photon();
async function main() {
  console.log(await photon.users.count());
}

main()

1. The query logs null instead of 0

[timsuchanek]

Fixed in latest alpha.
You can try it out with npm i -g prisma2@alpha.