No connect within the create of a connect_or_create clause

[mariomeissner]

Bug description

Can't seem to perform a connect within the create of a connect_or_create clause.

How to reproduce

The following query works in TypeScript Prisma:

data: {
        content,
        role,
        thread: {
          connectOrCreate: {
            where: { id: threadId },
            create: {
              id: threadId,
              name: "New thread",
              workspace: {
                connect: { slug: workspaceSlug },
              },
              createdBy: { connect: { id: userId } },
            },
          },
        },

Expected behavior

I expected to be able to do the same in Python, but workspace was not an available field within the create field. I was only able to specify workspaceId.

Prisma information

prisma == 0.15.0