Shared collection: Guest user cannot view product variant details🔵

When a collection containing linked product variants is shared with an external (guest) user, opening a product variant from the shared collection results in an empty page. The variant details do not load, and a JavaScript error is logged in the browser console.

Steps to Reproduce

1. Log in as an admin user.

2. Create or open a collection that has product variants linked.

3. Share the collection with an external email address.

4. Open the shared link in an incognito browser tab.

5. Enter the OTP to authenticate as a guest user.

6. In the shared collection, locate a linked product variant in the table.

7. Click the icon to open its details page.

   Expected Result: The product variant details page opens correctly and displays variant information for the guest user.

   Actual Result: An empty page is displayed instead of the variant details. A JavaScript error is shown in the browser console (Apollo error).