nested element card ownership data

[i-just]

Description

If the owner element was edited and just got a provisional draft (without the page being reloaded), ensure we set the updated data-owner-id on the CKEditor’s nested element cards.

Steps to reproduce:

• set up a section with an entry type that contains a CKE field; the CKE field allows for nested entries
• create an owner entry, add content to the CKE, add a nested entry in the CKE; fully save everything
• edit the owner entry so that a provisional draft is created, but don’t reload the page
• click “Preview” and edit the entry nested in the CKE; once the autosave finishes its job, try to save that nested entry
• "The owner element must be a derivative.” error pops up

This was happening because when the entry nested in the CKE was edited, it was swapped for the provisional draft (with the “Edited” label), and that version of the card had both data-owner-id and data-primary-owner-id set to the owner's canonical id.

Related issues

n/a