Inscribing on high offset satpoints causes false high fee report

[gmart7t2]

We have 2 outputs worth 1 million and 100k. No inscriptions, nothing locked:

$ ord wallet outputs | jq -cM '.[]'
{"output":"09333af8d91af16b00db361ea8005908a12a10393efd54b794263547d7d11ad5:0","amount":1000000},
{"output":"08672f8ee4f222989fb61883bcbd0bf7777622c475b1b2fc65257d24edced3dc:1","amount":100000}
$ ord wallet inscriptions | jq -cM
[]
$ bitcoin listlockunspent | jq -cM
[]

We inscribe a short text message on the last sat of the bigger output. ord tells us the fee is almost a million sats:

$ echo hello > /tmp/hello.txt
$ ord wallet inscribe --satpoint 09333af8d91af16b00db361ea8005908a12a10393efd54b794263547d7d11ad5:0:999999 /tmp/hello.txt
{
  "commit": "25bd32cc6b2d65335743e5c5592f8f9a9bc9e209765ec0b416166a1ed89ccd36",
  "inscription": "f6677e67a5298dcd146fa25ea73a318a6135e4ad1bc1dd3b5bb54d16e733c522i0",
  "reveal": "f6677e67a5298dcd146fa25ea73a318a6135e4ad1bc1dd3b5bb54d16e733c522",
  "fees": 990254
}

We check the transactions and see that the fee wasn't really that big:

$ ctx=25bd32cc6b2d65335743e5c5592f8f9a9bc9e209765ec0b416166a1ed89ccd36
$ rtx=f6677e67a5298dcd146fa25ea73a318a6135e4ad1bc1dd3b5bb54d16e733c522
$ for tx in $ctx $rtx; do echo vsize: $(bitcoin getrawtransaction $tx 1 | jq .vsize), fee: $(bitcoin gettransaction $tx | jq '.fee*-1e8|round'); done
vsize: 255, fee: 255
vsize: 139, fee: 139
$ python -c "print 255 + 139"
394

We confirm by checking the remaining outputs. We're only missing 394 sats:

$ ord wallet outputs | jq -cM '.[]'
{"output":"f6677e67a5298dcd146fa25ea73a318a6135e4ad1bc1dd3b5bb54d16e733c522:0","amount":10000}
{"output":"25bd32cc6b2d65335743e5c5592f8f9a9bc9e209765ec0b416166a1ed89ccd36:0","amount":999999}
{"output":"25bd32cc6b2d65335743e5c5592f8f9a9bc9e209765ec0b416166a1ed89ccd36:2","amount":89607}
$ python -c "print (1000000 + 100000) - (10000 + 999999 + 89607)"
394