Ability to view changes to Address/Phone/Email when viewing diff of Contact's revisions

I am not sure this is a good idea.

With the User integration, we will want to ensure the user's email is of fo the contact's emails. We might want to allow editing a CRM Contact Detail in a stand alone form, to all a user to edit their contact's telephone or address, or name, but not the entire contact.

If we add shared CRM Contact Details, we will not want the revision id.

I think this is the trade off of having separate entity instead a field.

If we were to pursue this, I don't think it would be any time soon. There is definite complexity. Happy to WF pending demand.

Since the three fields are base field, we could add extra columns to the revision table to store the contact detail revision id.

This could introduce false positives if the contact detail is edited if some other way; if there were shared contact details.

The revision table will not work there are multiple emails/addresses/telephones.

Could you clarify your last comment? It works for Paragraphs, doesn't it?