BIP30 Duplicate TX displaying "wrong" height

This is just sort of amusing but in doing a bit of historical research on BIP30 and BIP34 I noticed one of the "duplicated" txids is displayed on the block explorer as being confirmed in block 91812:

https://blockstream.info/tx/d5d27987d2a3dfc724e359870c6644b40e497bdc0589a033220fe15429d88599

This is true, but that transaction was ALSO confirmed in block 91842.

The display is correct of course (and this is just semantics) but that utxo is considered by bitcoind to be confirmed in block 91842, the second time that transaction was confirmed:

```
$ echo $(( `bitcoin-cli getblockchaininfo \
| jq .blocks` - \
`bitcoin-cli gettxout d5d27987d2a3dfc724e359870c6644b40e497bdc0589a033220fe15429d88599 0 \
| jq .confirmations`))
91841
```