Incentive node keeps receiving rewards regardless if it was ever unlocked

[whphhg]

I've recently forgot to unlock the incentive node on start-up and was surprised the next day when I connected to the wallet to see that it still received the incentive rewards over-night, even though the daemon kept reporting the message below.

[INFO] - operator(): Incentive manager key is null, trying wallet.
[INFO] - operator(): Incentive manager wallet is locked, will try again.

I've since left it running for a couple of more days (never unlocking), and it kept receiving 2-3 rewards per day. This is the getincentiveinfo response.

{
  "jsonrpc": "2.0",
  "result": {
    "walletaddress": "",
    "collateralrequired": 10000,
    "collateralbalance": 0,
    "networkstatus": "ok",
    "votecandidate": false,
    "votescore": -1
  },
  "id": "6095"
}