### What? There were a couple issues with the implementation within the example when using postgres. - `ensureUniqueUsername` tenant was being extracted incorrectly, should not constrain query unless it was present - `ensureUniqueSlug` was querying by NaN when tenant was not present on data or originalDoc - `users` read access was not correctly extracting the tenant id in the correct type depending on DB Fixes https://github.com/payloadcms/payload/issues/11484