fn review(learned: Option<(&Filter, Verdict)>) -> Option<(Lane, Reason)>Expand description
A stranger’s message your own filter judged (learned: only of mail no
protection covers), whose class you chose to flag or to move into the
Junk folder: the review queue, where it waits for your word, never
notified. A message to move stays there until it is moved, once fetched
(sioul-app’s spam::after_fetch). “Do nothing”: its lane, as if unjudged.