Node crashes when processing partial transaction

Start with blindpsbt.cpp around line 554 and reproduce the supplied walletprocesspsbt case using the dummy blinded output created through createpsbt. Trace the blinding status and rangeproof failure for the zero-value output, then add or run a regression test for this transaction so the node no longer aborts while processing the partial transaction.

I made the node crash while trying to blind the following pset:

$ e1 walletprocesspsbt cHNldP8BAgQCAAAAAQMEAAAAAAEEAQEBBQEDAfsEAgAAAAABDiAqrJ9c31tcJHnWDjQWJNUfArZMJr1w1h7/S6GIMG31DwEPBAAAAAABEAT/////AAEEFgAUBFTPa7NoO3V+jzsjbmvRlQwcOWoBAwgA4fUFAAAAAAf8BHBzZXQCINMRFPznA5TB+dNUdQG0udNvQgI27GQZkVRWZDSIWs8tAAEEFgAU+a3P0cB6H1+r8pR099KXbz20PbwBAwgAAAAAAAAAAAf8BHBzZXQCICWyUQcOKcoZBDzzPM1zJOLdqwPsxK4LXnfE/A5c9slaB/wEcHNldAYhAv2YM9xdvR/Mxx+ulKcSzcom+JQpzsV/hrxKHexk7BYYB/wEcHNldAgEAAAAAAABBAABAwjoAwAAAAAAAAf8BHBzZXQCICWyUQcOKcoZBDzzPM1zJOLdqwPsxK4LXnfE/A5c9slaAA== false

The input of the tx is confidential and its amount is exactly 0.00001, therefore it's spent entirely by the fee out.
The first output of the tx is a non-LBTC unblinded one, therefore i tried to add a dummy LBTC blinded output to balance the tx as {"el1qqt7esv7utk73lnx8r7hfffcjeh9zd7y5988v2luxh39pmmryastp37ddelguq7slt74l99r57lffwmeaks7mc883qj7565fdg": 0, "blinder_index": 0} in createpsbt.

These are the last logs of the node:

2022-04-15T15:39:50Z [default wallet] AddToWallet 02338810e562a4fe99d555e616932f76dbb8301e9e264fcf6e9a3cf56ce5322d  new
2022-04-15T15:39:50Z [default wallet] AddToWallet 0ff56d3088a14bff1ed670bd264cb6021fd52416340ed679245c5bdf5c9fac2a  update
elementsd: blindpsbt.cpp:554: BlindingStatus BlindPSBT(PartiallySignedTransaction&, std::map<unsigned int, std::tuple<long int, CAsset, uint256, uint256> >, std::map<unsigned int, std::pair<CKey, CKey> >): Assertion `rangeresult' failed.

Seems like the blinder role fails to create a rangeproof for the dummy output. Am I doing something wrong?