Marking this as wishlist since per the dev meeting today it's on the 3.10 roadmap, but please speak up if there's a strong desire to have it backported to (say) 3.9.2.
Marking this as wishlist since per the dev meeting today it's on the 3.10 roadmap, but please speak up if there's a strong desire to have it backported to (say) 3.9.2.