BUG: Deleting drafts from overview also deletes whole thread.
I've just tried finding out why exactly some e-mail (replies) are always black-on-white-text on dark mode, so created a lot of empty drafts. Obviously, Epistles also auto-saves empty drafts when going 'Back' without typing anything. Went to 'Drafts', and since I don't need my fake drafts, selected all and deleted them.
As opposed to other e-mail clients, not only my drafts, but the whole threads got deleted. I'm glad I saw it before they disappeared forever…