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"
}
```
WaetLogPrintf("%s: Rescanning last %i blocks\n", __func__, start ? WITH_LOCK(cs_waet, return GetLastBlockHeight()) - start_height + 1 : 0);
    if (start) {
        // T
        ScanResult result = ScanForWaetTransactions(start_block, start_height, {} /* mserver, update);
        if (result.status == ScanResult::FAILURE) {
            int64_t time_max;
            CHECK_NONFATAL(chain().findBlock(result.last_failed_block, FoundBlock().maxTime(time_max)));
            return time_max + TIMESTAMP_WINDOW + 1;
        }
    }
    return startTime;
}
/**
 * Scan the block chain (starting in start_block) for transactions
 * from or to us. If fUpdate is true, found transactions that already
 * exist in the waet wi be updated.
 *
 * @param[in] start_block Scan starting block. If block is not on the active
 *                        chain, the scan wi return SUCCESS immediately.
 * @param[in] start_height Height of start_block
 * @param[in] max_height  Optional max scanning height. If unset there is
 *                        no maximum and scanning can continue to the tip
 *
 * @return ScanResult returning scan information and indicating success or
 *         failure. Return status wi be set to SUCCESS if scan was
 *         successful. FAILURE if a complete rescan was not possible (due to
 *         pruning or corruption). USER_ABORT if the rescan was aborted before
 *         it could complete.
 *
 * @pre Caer needs to make sure start_block (and the optional stop_block) are on