but notice from the preceding post "Though the league approved of Sydney's move last year, they have informally notified list managers this week at the Gold Coast that they will not be able to employ the same strategy during this year's draft."
this implies there is no formal afl rule, which allows the afl to interpret on the fly (surprise, surprise). i'd expect they would only apply the new rule in the same situation as last year including it being just during the draft night (unless something really looked obvious and smelly and deliberately setup during trade time to circumvent new rule ) . if a pick from trade time got traded back during draft night and it was obviously innocuous i suspect they'd let it go.