"Multiple copies of Liveblocks are being loaded in your project" in v1.2.4 with Next.js and Yarn PnP

[a-churchill]

Describe the bug

I installed @liveblocks/react and @liveblocks/client in my React application using Next.js and Yarn PnP, and now SSR fails for routes using the RoomProvider with the error message:

Error: Multiple copies of Liveblocks are being loaded in your project. This will cause issues! See https://liveblocks.io/docs/errors/dupes 

Conflicts:
- @liveblocks/core 1.2.4 (cjs) (already loaded)
- @liveblocks/core 1.2.4 (esm) (trying to load this now)

I already checked out the linked page and confirmed that I only have v1.2.4 in my yarn.lock file.

When I downgraded to v1.2.3, the error went away.

To Reproduce

1. Create a Next.js app with a SSR route (using getServerSideProps), using Yarn PnP as a package manager
2. Mount a RoomProvider at that route

Expected behavior

The SSR works and I can load the route

Environment (please complete the following information):

• next: 12.1.5
• yarn: 3.3.31
• @liveblocks/client: 1.2.4
• @liveblocks/react: 1.2.4
• Browser: N/A