Bitcoin core 0.16.0rc3 importmulti works with Bech32 segwit! #12554

As that answer in here

As noted in the Bitcoin Core 0.16 release notes, importmulti does not support SegWit addresses yet. This will be fixed in an upcoming release.

I've tried to import watch-only segwit bech32 address using importmulti and it did work! Sounds great to me But, if not fixed yet how did it work?

I've tried to import addresses as follows:

./src/bitcoin-cli  importmulti     [
    {
        "scriptPubKey" : { "address": "tb1qh2sdesazn9ac34xk3qt4d2jn0vhd993hjrkk9h" },
        "timestamp" : "now",
        "watchonly" : "true"
    }
  ] ,  { "rescan": false }

Response: {"success":true}

./src/bitcoin-cli listtransactions "" 10 0 true

[
  {
    "involvesWatchonly": true,
    "account": "",
    "address": "tb1qh2sdesazn9ac34xk3qt4d2jn0vhd993hjrkk9h",
    "category": "receive",
    "amount": 0.10000000,
    "label": "",
    "vout": 0,
    "confirmations": 0,
    "trusted": false,
    "txid": "48089a814ac571944feb7162cc0145eea4e72742aa51f6f23d470debd838eeb3",
    "walletconflicts": [
    ],
    "time": 1519713147,
    "timereceived": 1519713147,
    "bip125-replaceable": "yes"
  }
]

Related to #12253.