Hello, i've an issue when I edit a record :
If I delete an existing field value, save form and just after, modify another field and save form again,
my previous field to which I deleted the value, returns to its previous value.
When form is refreshed after save, If I check the React Query dev tool, the data are however good
It's occurs only when field value was previously set to null
Little precision : I use Airtable as database, and records fields that are null are not retrieved from the record data

Steps to reproduce:

• Select a record from post list

• if "Name" input was empty, add value, save form, and refresh stackblitz render window

• delete "Name" value

• save form

• change value of checkbox

• save form

• https://stackblitz.com/edit/github-iq4gf4?file=src%2Fposts%2FPostEdit.tsx,src%2FdataProvider.tsx,src%2Fposts%2FPostList.tsx

Environment

• React-admin version: 4.14.4
• Last version that did not exhibit the issue : 3.11.3 (yeah big jump 😅)
• React version: 17.0.0
• Browser: Chrome, Safari, Firefox