When using the `rescanblockchain` wallet RPC command, it seems like sometimes (though not always, and I couldn't find a specific pattern for when this does and doesn't happen) the `time` field of all transactions found is being set to the time of the most recent transaction detected. Besides that field, all data (including block and blocktime) return correctly. What's more, even in a node with `txindex=1` this happens, despite that when calling the (non-wallet-specific) `getrawtransaction` command, it returns the correct time.

Here's an example of a testnet transaction where I experienced this behaviour, and the output of Core where the same `txid` has. 2 different `time`s - a correct one using `getrawtransaction` and an incorrect one using `gettransaction`:
```
bitcoin-cli --testnet -rpcwallet=wallet getrawtransaction 8bacfc9c63d181e9d303f57f550fe72870afd640c961466829c6212bb23a72fe 1
{
  "txid": "8bacfc9c63d181e9d303f57f550fe72870afd640c961466829c6212bb23a72fe",
  "hash": "3de22064b8fec52fb183a8ad46fd011e6c6cab9906a008afa3d649d11bd250f1",
  "version": 2,
  "size": 222,
  "vsize": 141,
  "weight": 561,
  "locktime": 0,
  "vin": [
    {
      "txid": "685571776adce2ac3332faf6ed125235366cc3cb464604c9234bf371f1ab4e02",
      "vout": 0,
      "scriptSig": {
        "asm": "",
        "hex": ""
      },
      "txinwitness": [
        "30440220516d0b313aae44f639a111dac8f27bc1fac446345aaad51852a784620ac62c690220433cb7fdeb78cd84574ec0ddd08789a248fe19b71759e1b3b448ff9c3f980be401",
        "03eca8ceb44c4d930ab89fb5d721d02a745e4aeb0f75993fa535e98fb6c7f6e16e"
      ],
      "sequence": 4294967294
    }
  ],
  "vout": [
    {
      "value": 0.53891045,
      "n": 0,
      "scriptPubKey": {
        "asm": "0 f3020d45a9ccf870ddf4176fde4420931ffd9af6",
        "hex": "0014f3020d45a9ccf870ddf4176fde4420931ffd9af6",
        "reqSigs": 1,
        "type": "witness_v0_keyhash",
        "addresses": [
          "tb1q7vpq63dfenu8ph05zahau3pqjv0lmxhk73dsjm"
        ]
      }
    },
    {
      "value": 0.10000000,
      "n": 1,
      "scriptPubKey": {
        "asm": "0 bf702bf755da860153e7b1043fea160c6dcd9f1a",
        "hex": "0014bf702bf755da860153e7b1043fea160c6dcd9f1a",
        "reqSigs": 1,
        "type": "witness_v0_keyhash",
        "addresses": [
          "tb1qhaczha64m2rqz5l8kyzrl6skp3kum8c6m0c2h4"
        ]
      }
    }
  ],
  "hex": "02000000000101024eabf171f34b23c9044646cbc36c36355212edf6fa3233ace2dc6a777155680000000000feffffff02e54f360300000000160014f3020d45a9ccf870ddf4176fde4420931ffd9af68096980000000000160014bf702bf755da860153e7b1043fea160c6dcd9f1a024730440220516d0b313aae44f639a111dac8f27bc1fac446345aaad51852a784620ac62c690220433cb7fdeb78cd84574ec0ddd08789a248fe19b71759e1b3b448ff9c3f980be4012103eca8ceb44c4d930ab89fb5d721d02a745e4aeb0f75993fa535e98fb6c7f6e16e00000000",
  "blockhash": "00000000000000bc3b97cbe323c4695f39a65cc1d73060dca8ad084fb0ce61b5",
  "confirmations": 27528,
  "time": 1600623861,
  "blocktime": 1600623861
}
```
```
bitcoin-cli --testnet -rpcwallet=wallet gettransaction 8bacfc9c63d181e9d303f57f550fe72870afd640c961466829c6212bb23a72fe
{
  "amount": -0.10000000,
  "fee": -0.00000142,
  "confirmations": 27528,
  "blockhash": "00000000000000bc3b97cbe323c4695f39a65cc1d73060dca8ad084fb0ce61b5",
  "blockheight": 1835261,
  "blockindex": 24,
  "blocktime": 1600623861,
  "txid": "8bacfc9c63d181e9d303f57f550fe72870afd640c961466829c6212bb23a72fe",
  "walletconflicts": [
  ],
  "time": 1601486746,
  "timereceived": 1602570577,
  "bip125-replaceable": "no",
  "details": [
    {
      "involvesWatchonly": true,
      "address": "tb1q7vpq63dfenu8ph05zahau3pqjv0lmxhk73dsjm",
      "category": "send",
      "amount": -0.53891045,
      "label": "Change #5",
      "vout": 0,
      "fee": -0.00000142,
      "abandoned": false
    },
    {
      "involvesWatchonly": true,
      "address": "tb1qhaczha64m2rqz5l8kyzrl6skp3kum8c6m0c2h4",
      "category": "send",
      "amount": -0.10000000,
      "vout": 1,
      "fee": -0.00000142,
      "abandoned": false
    },
    {
      "involvesWatchonly": true,
      "address": "tb1q7vpq63dfenu8ph05zahau3pqjv0lmxhk73dsjm",
      "category": "receive",
      "amount": 0.53891045,
      "label": "Change #5",
      "vout": 0
    }
  ],
  "hex": "02000000000101024eabf171f34b23c9044646cbc36c36355212edf6fa3233ace2dc6a777155680000000000feffffff02e54f360300000000160014f3020d45a9ccf870ddf4176fde4420931ffd9af68096980000000000160014bf702bf755da860153e7b1043fea160c6dcd9f1a024730440220516d0b313aae44f639a111dac8f27bc1fac446345aaad51852a784620ac62c690220433cb7fdeb78cd84574ec0ddd08789a248fe19b71759e1b3b448ff9c3f980be4012103eca8ceb44c4d930ab89fb5d721d02a745e4aeb0f75993fa535e98fb6c7f6e16e00000000"
}
```
{
        std::vector<CTxOut> v_txouts(txouts.size());
        std::copy(txouts.begin(), txouts.end(), v_txouts.begin());
        return DummySignTx(txNew, v_txouts, use_max_sig);
    }
    bool DummySignTx(CMutableTransaction &txNew, const std::vector<CTxOut> &txouts, bool use_max_sig = false) const;
    bool DummySignInput(CTxIn &tx_in, const CTxOut &txout, bool use_max_sig = false) const;
    bool ImportScripts(const std::set<CScript> scripts, int64_t timestamp) EXCLUSIVE_LOCKS_REQUIRED(cs_wallet);
    bool ImportPrivKeys(const std::map<CKeyID, CKey>& privkey_map, const int64_t timestamp) EXCLUSIVE_LOCKS_REQUIRED(cs_wallet);
    bool ImportPubKeys(const std::vector<CKeyID>& ordered_pubkeys, const std::map<CKeyID, CPubKey>& pubkey_map, const std::map<CKeyID, std::pair<CPubKey, KeyOriginInfo>>& key_origins, const bool add_keypool, const bool internal, const int64_t timestamp) EXCLUSIVE_LOCKS_REQUIRED(cs_wallet);
    bool ImportScriptPubKeys(const std::string& label, const std::set<CScript>& script_pub_keys, const bool have_solving_data, const bool apply_label, const int64_t timestamp) EXCLUSIVE_LOCKS_REQUIRED(cs_wallet);
    CFeeRate m_pay_tx_fee{DEFAULT_PAY_TX_FEE};
    unsigned int m_confirm_target{DEFAULT_TX_CONFIRM_TARGET};
    /** Allow Coin Selection to pick unconfirmed UTXOs that were sent from our own wallet if it
     * cannot fund the transaction otherwise. */
    bool m_spend_zero_conf_change{DEFAULT_SPEND_ZEROCONF_CHANGE};
    bool m_signal_rbf{DEFAULT_WALLET_RBF};
    bool m_allow_fallback_fee{true}; 
    CFeeRate m_min_fee{DEFAULT_TRANSACTION_MINFEE}; 
    /**