Status quo:
Any card that is updated in any capacity (whether content or just tags) or newly created is moved to the deck specified under Deck Management → Destination for New Cards.
Target state:
Only truly new cards are moved to Destination for New Cards.
Possible reason (bug? intended behaviour?):
Any card that is updated in any capacity (whether content or just tags) or newly created receives the New Note attribute and can be found under the same in browser sidebar AnkiHub “submenu”.
All other ankihub_suggestion_type attributes are empty (which also seems weird looking at it now).