Relational field update fails when user's role has granular permission

[darioguarascio]

Preflight Checklist

• I have completed all Troubleshooting Steps.
• I'm on the latest version of Directus.
• There's no other issue that already describes my problem.

Describe the Bug

A user with granular permission fails to add new rows in a table that has a M2O relationship.
As admin role, with all permissions set, everything works well.

The custom role has all permission set

To Reproduce

In table A there is a website field Many to One to website table and a simple text field name

I am accessing directus as user that has read/write/delete/update permission on table A where website -> name Equals x

When I try to add a new row to table A, selecting an entry from the website table with the M2O selector, I get the following error

{"errors":[{"message":"\"website\" must be of type object","extensions":{"code":"FAILED_VALIDATION","field":"website"}}]}

the data being posted is the following:

{
    "name": "test",
    "website": 37
}

Errors Shown

What version of Directus are you using?

9.4.0

What version of Node.js are you using?

16.13.1

What database are you using?

postgres:13

What browser are you using?

Chrome

What operating system are you using?

Linux 5.11.0-41-generic

How are you deploying Directus?

Docker

[darioguarascio]

I have to add: updating an already existing row, with the restricted role, works ok (at least for non-relational fields)