Is it possible to avoid being sniffed by dogs at Heathrow airport and possibly other airports? appeared on the hot network question list for me, even though it was locked 7 hours ago due to off-topic comments.
Questions that have a problem severe enough to warrant a moderation lock shouldn't appear on the hot question list - that'd only add fuel to the fire once they are unlocked. Instead, show it to people for the first time once it's been fixed up.
This is different from Hot question but locked in that that question had a historical question lock, not an off-topic-comments moderation lock.
This is still happening in February 2017, with this question appearing on HNQ.