This is the error I get:
$ bitcoin-cli -rpcwallet=descriptor -testnet upgradewallet <
error code: -1
error message:
wallet/rpcwallet.cpp:4522 (operator())
Internal bug detected: '!error.empty()'
You may report this issue here: https://github.com/bitcoin/bitcoin/issues
The daemon logs this:
2021-07-15T16:16:54Z [descriptor] Performing wallet upgrade to 169900
Expected behavior
When I do the same on the default (non-descriptor) wallet:
$ bitcoin-cli -rpcwallet="" -testnet upgradewallet
{
"wallet_name": "",
"previous_version": 169900,
"current_version": 169900,
"result": "Already at latest version. Wallet version unchanged."
}
<!-- **Actual behavior** -->
<!-- See above. Isn't this kind of backwards, to first ask what I expect and then ask what I got? I am writing here because I got something strange in the first place... -->
System information
Bitcoin Core v0.21.1 Linux x86_64 glibc (Ubuntu) using binarias from bitcoincore.org