Constant forest_actor::miner::WORKER_KEY_CHANGE_DELAY

pub const WORKER_KEY_CHANGE_DELAY: ChainEpoch = CHAIN_FINALITY; // 900i64

Staging period for a miner worker key change. Finality is a harsh delay for a miner who has lost their worker key, as the miner will miss Window PoSts until it can be changed. It’s the only safe value, though. We may implement a mitigation mechanism such as a second key or allowing the owner account to submit PoSts while a key change is pending.